<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019c919b-f582-7e2d-b699-b8828238c5b7,g:2d779940-5e9c-484b-9c94-e50b3b10ccb8-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="https://xbrl.org/2023/arcrole/summation-item" xlink:type="simple" xlink:href="https://www.xbrl.org/2023/calculation-1.1.xsd#summation-item"/>
  <link:roleRef roleURI="http://www.patenergy.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS" xlink:type="simple" xlink:href="pten-20260331.xsd#CONDENSEDCONSOLIDATEDBALANCESHEETS"/>
  <link:calculationLink xlink:role="http://www.patenergy.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019c919b-f701-757f-9712-113b0ac44579" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_019c919b-f701-75eb-aae8-9aafa5425f95" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019c919b-f701-757f-9712-113b0ac44579" xlink:to="loc_us-gaap_CommonStockValue_019c919b-f701-75eb-aae8-9aafa5425f95" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_019c919b-f701-71b7-bf22-df37a0212ef7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdditionalPaidInCapitalCommonStock"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019c919b-f701-757f-9712-113b0ac44579" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_019c919b-f701-71b7-bf22-df37a0212ef7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019c919b-f701-7113-a26f-b4f41cf29029" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019c919b-f701-757f-9712-113b0ac44579" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019c919b-f701-7113-a26f-b4f41cf29029" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_019c919b-f701-7d5b-a0d8-0af2dc4f1dd5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019c919b-f701-757f-9712-113b0ac44579" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_019c919b-f701-7d5b-a0d8-0af2dc4f1dd5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockValue_019c919b-f701-7c73-9664-9d71efc2312b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TreasuryStockValue"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019c919b-f701-757f-9712-113b0ac44579" xlink:to="loc_us-gaap_TreasuryStockValue_019c919b-f701-7c73-9664-9d71efc2312b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019c919b-f701-78b5-add8-248fe32810ca" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterest_019c919b-f701-7ac4-ba41-32c3c76ee724" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MinorityInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019c919b-f701-78b5-add8-248fe32810ca" xlink:to="loc_us-gaap_MinorityInterest_019c919b-f701-7ac4-ba41-32c3c76ee724" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019c919b-f701-718c-a383-fe187dfc4dab" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquity"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019c919b-f701-78b5-add8-248fe32810ca" xlink:to="loc_us-gaap_StockholdersEquity_019c919b-f701-718c-a383-fe187dfc4dab" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_019c919b-f701-7d6e-be74-acea83df4185" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_019c919b-f701-7efd-b0c6-5a5f9befc8ae" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019c919b-f701-7d6e-be74-acea83df4185" xlink:to="loc_us-gaap_AccountsPayableCurrent_019c919b-f701-7efd-b0c6-5a5f9befc8ae" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_019c919b-f701-7c6e-9dba-f331afc113a1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019c919b-f701-7d6e-be74-acea83df4185" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent_019c919b-f701-7c6e-9dba-f331afc113a1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_019c919b-f701-785f-b38b-36be61e3fa01" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019c919b-f701-7d6e-be74-acea83df4185" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_019c919b-f701-785f-b38b-36be61e3fa01" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityCurrent_019c919b-f701-785f-a182-8be6abd06bad" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiabilityCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019c919b-f701-7d6e-be74-acea83df4185" xlink:to="loc_us-gaap_FinanceLeaseLiabilityCurrent_019c919b-f701-785f-a182-8be6abd06bad" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_019c919b-f701-78f6-b8ab-a654021e10a0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019c919b-f701-7cdb-9d55-f38da935cc25" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Liabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019c919b-f701-78f6-b8ab-a654021e10a0" xlink:to="loc_us-gaap_Liabilities_019c919b-f701-7cdb-9d55-f38da935cc25" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_019c919b-f701-7353-86ba-232b25ba78d7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019c919b-f701-78f6-b8ab-a654021e10a0" xlink:to="loc_us-gaap_CommitmentsAndContingencies_019c919b-f701-7353-86ba-232b25ba78d7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019c919b-f701-763b-8f46-8d416d0513c7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019c919b-f701-78f6-b8ab-a654021e10a0" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019c919b-f701-763b-8f46-8d416d0513c7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_019c919b-f701-7c4b-b6ed-1a4729fbc6e4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019c919b-f701-7a39-9c56-07ff2fcb760c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019c919b-f701-7c4b-b6ed-1a4729fbc6e4" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019c919b-f701-7a39-9c56-07ff2fcb760c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_019c919b-f701-760c-8bfc-88aad6a87d0f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019c919b-f701-7c4b-b6ed-1a4729fbc6e4" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_019c919b-f701-760c-8bfc-88aad6a87d0f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_019c919b-f701-7565-a821-9a0717602436" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryNet"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019c919b-f701-7c4b-b6ed-1a4729fbc6e4" xlink:to="loc_us-gaap_InventoryNet_019c919b-f701-7565-a821-9a0717602436" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_019c919b-f701-7970-a15d-ea7cb77ddbc1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019c919b-f701-7c4b-b6ed-1a4729fbc6e4" xlink:to="loc_us-gaap_OtherAssetsCurrent_019c919b-f701-7970-a15d-ea7cb77ddbc1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019c919b-f701-71ca-af62-5d7159851f78" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_019c919b-f701-77d4-ac07-c8c272dec041" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019c919b-f701-71ca-af62-5d7159851f78" xlink:to="loc_us-gaap_LiabilitiesCurrent_019c919b-f701-77d4-ac07-c8c272dec041" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019c919b-f701-7e99-87cd-e21e3289e28f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019c919b-f701-71ca-af62-5d7159851f78" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019c919b-f701-7e99-87cd-e21e3289e28f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityNoncurrent_019c919b-f701-7d0b-b11b-6c3fbee20070" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019c919b-f701-71ca-af62-5d7159851f78" xlink:to="loc_us-gaap_FinanceLeaseLiabilityNoncurrent_019c919b-f701-7d0b-b11b-6c3fbee20070" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_019c919b-f701-7b6e-af09-ca273ae2e99b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019c919b-f701-71ca-af62-5d7159851f78" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_019c919b-f701-7b6e-af09-ca273ae2e99b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_019c919b-f701-7952-92f5-0b528486ecf7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019c919b-f701-71ca-af62-5d7159851f78" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_019c919b-f701-7952-92f5-0b528486ecf7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_019c919b-f701-75e9-a0a3-00966b429145" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019c919b-f701-71ca-af62-5d7159851f78" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_019c919b-f701-75e9-a0a3-00966b429145" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_019c919b-f701-78e3-92a5-920cd490d3fc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_019c919b-f701-7fe3-8ba3-d57c8873d643" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019c919b-f701-78e3-92a5-920cd490d3fc" xlink:to="loc_us-gaap_AssetsCurrent_019c919b-f701-7fe3-8ba3-d57c8873d643" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_019c919b-f701-72f2-96d5-bc52957af8c4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019c919b-f701-78e3-92a5-920cd490d3fc" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_019c919b-f701-72f2-96d5-bc52957af8c4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_019c919b-f701-7d38-acd3-ed077c349621" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019c919b-f701-78e3-92a5-920cd490d3fc" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_019c919b-f701-7d38-acd3-ed077c349621" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAsset_019c919b-f701-7e6b-8f26-099765956468" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseRightOfUseAsset"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019c919b-f701-78e3-92a5-920cd490d3fc" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAsset_019c919b-f701-7e6b-8f26-099765956468" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019c919b-f701-7329-8f4d-53272e3c6f1b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019c919b-f701-78e3-92a5-920cd490d3fc" xlink:to="loc_us-gaap_Goodwill_019c919b-f701-7329-8f4d-53272e3c6f1b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019c919b-f701-7694-8d38-4ec67a9ab16c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019c919b-f701-78e3-92a5-920cd490d3fc" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019c919b-f701-7694-8d38-4ec67a9ab16c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepositsAssetsNoncurrent_019c919b-f701-7786-944d-aee5d021aa6f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DepositsAssetsNoncurrent"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019c919b-f701-78e3-92a5-920cd490d3fc" xlink:to="loc_us-gaap_DepositsAssetsNoncurrent_019c919b-f701-7786-944d-aee5d021aa6f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_019c919b-f701-78eb-9cfb-b275ea41b123" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019c919b-f701-78e3-92a5-920cd490d3fc" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_019c919b-f701-78eb-9cfb-b275ea41b123" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.patenergy.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS" xlink:type="simple" xlink:href="pten-20260331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS"/>
  <link:calculationLink xlink:role="http://www.patenergy.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_019c919b-f701-7d04-9d93-416cbf1d361c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeInterest_019c919b-f701-7746-bd5c-e4682d7f7217" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentIncomeInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_019c919b-f701-7d04-9d93-416cbf1d361c" xlink:to="loc_us-gaap_InvestmentIncomeInterest_019c919b-f701-7746-bd5c-e4682d7f7217" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseNonoperating_019c919b-f701-7f83-8ec0-5e1bdd0bd3a5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestExpenseNonoperating"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_019c919b-f701-7d04-9d93-416cbf1d361c" xlink:to="loc_us-gaap_InterestExpenseNonoperating_019c919b-f701-7f83-8ec0-5e1bdd0bd3a5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_019c919b-f701-78d9-9774-a7808b4abdd8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_019c919b-f701-7d04-9d93-416cbf1d361c" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_019c919b-f701-78d9-9774-a7808b4abdd8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019c919b-f701-7bb8-a2ca-b71eccd81ead" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_019c919b-f701-746d-b9a9-defcd65aa86a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019c919b-f701-7bb8-a2ca-b71eccd81ead" xlink:to="loc_us-gaap_OperatingIncomeLoss_019c919b-f701-746d-b9a9-defcd65aa86a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_019c919b-f701-77f7-9501-ef3a239fad36" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019c919b-f701-7bb8-a2ca-b71eccd81ead" xlink:to="loc_us-gaap_NonoperatingIncomeExpense_019c919b-f701-77f7-9501-ef3a239fad36" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_019c919b-f701-7af9-9593-f76f51162525" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_019c919b-f701-74d2-ae67-bab2722c25de" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Revenues"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_019c919b-f701-7af9-9593-f76f51162525" xlink:to="loc_us-gaap_Revenues_019c919b-f701-74d2-ae67-bab2722c25de" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpenses_019c919b-f701-7237-a958-c597421a6c7b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostsAndExpenses"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_019c919b-f701-7af9-9593-f76f51162525" xlink:to="loc_us-gaap_CostsAndExpenses_019c919b-f701-7237-a958-c597421a6c7b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019c919b-f701-700e-a29e-58fff4508ef4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019c919b-f701-7bc7-9c06-32c5f6487f24" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_019c919b-f701-700e-a29e-58fff4508ef4" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019c919b-f701-7bc7-9c06-32c5f6487f24" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019c919b-f701-7dbd-9080-cd5f19209ac7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_019c919b-f701-700e-a29e-58fff4508ef4" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019c919b-f701-7dbd-9080-cd5f19209ac7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpenses_019c919b-f701-748c-9449-1e4bc7df8aaa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostsAndExpenses"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_019c919b-f701-7cf8-baee-65e43d34fe83" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019c919b-f701-748c-9449-1e4bc7df8aaa" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_019c919b-f701-7cf8-baee-65e43d34fe83" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pten_DepreciationDepletionAmortizationAndImpairment_019c919b-f701-7cda-9b33-60d2d97349fb" xlink:href="pten-20260331.xsd#pten_DepreciationDepletionAmortizationAndImpairment"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019c919b-f701-748c-9449-1e4bc7df8aaa" xlink:to="loc_pten_DepreciationDepletionAmortizationAndImpairment_019c919b-f701-7cda-9b33-60d2d97349fb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_019c919b-f701-75aa-ae7a-b91a81bd5e6f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019c919b-f701-748c-9449-1e4bc7df8aaa" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_019c919b-f701-75aa-ae7a-b91a81bd5e6f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherOperatingIncomeExpenseNet_019c919b-f701-71fa-8e71-cc8d7e505fff" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherOperatingIncomeExpenseNet"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019c919b-f701-748c-9449-1e4bc7df8aaa" xlink:to="loc_us-gaap_OtherOperatingIncomeExpenseNet_019c919b-f701-71fa-8e71-cc8d7e505fff" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019c919b-f701-7b16-86a4-7b6d8c03cb88" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019c919b-f701-7c80-8643-13862dc6781a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019c919b-f701-7b16-86a4-7b6d8c03cb88" xlink:to="loc_us-gaap_ProfitLoss_019c919b-f701-7c80-8643-13862dc6781a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_019c919b-f701-7938-bc82-cb5428167850" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019c919b-f701-7b16-86a4-7b6d8c03cb88" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_019c919b-f701-7938-bc82-cb5428167850" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.patenergy.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMELOSS" xlink:type="simple" xlink:href="pten-20260331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMELOSS"/>
  <link:calculationLink xlink:role="http://www.patenergy.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMELOSS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_019c919b-f701-7518-8961-f9a1dacd3bcc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_019c919b-f701-70d3-ab3f-661446a76bcc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_019c919b-f701-7518-8961-f9a1dacd3bcc" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_019c919b-f701-70d3-ab3f-661446a76bcc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_019c919b-f701-726c-8e8e-a76b27a33a9d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_019c919b-f701-7518-8961-f9a1dacd3bcc" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_019c919b-f701-726c-8e8e-a76b27a33a9d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_019c919b-f701-7246-8989-4ef927c3d66f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019c919b-f701-7cf7-86be-ee610f49761e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_019c919b-f701-7246-8989-4ef927c3d66f" xlink:to="loc_us-gaap_ProfitLoss_019c919b-f701-7cf7-86be-ee610f49761e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_019c919b-f701-766b-b2ec-03f0e2c14792" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_019c919b-f701-7246-8989-4ef927c3d66f" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_019c919b-f701-766b-b2ec-03f0e2c14792" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.patenergy.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="simple" xlink:href="pten-20260331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"/>
  <link:calculationLink xlink:role="http://www.patenergy.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019c919b-f702-7a8d-8490-7acdac9703a0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_019c919b-f702-7e59-9445-d2536fbd38e7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019c919b-f702-7a8d-8490-7acdac9703a0" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_019c919b-f702-7e59-9445-d2536fbd38e7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividends_019c919b-f702-7405-9806-2197fcbe2ac4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsOfDividends"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019c919b-f702-7a8d-8490-7acdac9703a0" xlink:to="loc_us-gaap_PaymentsOfDividends_019c919b-f702-7405-9806-2197fcbe2ac4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_019c919b-f702-74c9-9d72-6546deef9f96" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019c919b-f702-7a8d-8490-7acdac9703a0" xlink:to="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_019c919b-f702-74c9-9d72-6546deef9f96" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeasePrincipalPayments_019c919b-f702-7224-9b34-86027043e9a8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeasePrincipalPayments"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019c919b-f702-7a8d-8490-7acdac9703a0" xlink:to="loc_us-gaap_FinanceLeasePrincipalPayments_019c919b-f702-7224-9b34-86027043e9a8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019c919b-f702-7227-920e-cf9e5374ad65" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c919b-f702-74a3-9203-5bdff94e9574" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019c919b-f702-7227-920e-cf9e5374ad65" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c919b-f702-74a3-9203-5bdff94e9574" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019c919b-f702-70ad-a944-926ed8d9b3ca" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019c919b-f702-7227-920e-cf9e5374ad65" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019c919b-f702-70ad-a944-926ed8d9b3ca" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019c919b-f702-79b8-9307-7df8cd4471f9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019c919b-f702-7227-920e-cf9e5374ad65" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019c919b-f702-79b8-9307-7df8cd4471f9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_019c919b-f702-7ea0-85a7-621128a020c7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019c919b-f702-7227-920e-cf9e5374ad65" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_019c919b-f702-7ea0-85a7-621128a020c7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019c919b-f702-7bd9-8744-840307e986ed" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_019c919b-f702-763e-a0ff-e05dc60e569f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019c919b-f702-7bd9-8744-840307e986ed" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_019c919b-f702-763e-a0ff-e05dc60e569f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfProductiveAssets_019c919b-f702-722b-9e44-e7b79e52062f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromSaleOfProductiveAssets"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019c919b-f702-7bd9-8744-840307e986ed" xlink:to="loc_us-gaap_ProceedsFromSaleOfProductiveAssets_019c919b-f702-722b-9e44-e7b79e52062f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireOtherInvestments_019c919b-f702-703d-844d-2382e627ae2c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquireOtherInvestments"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019c919b-f702-7bd9-8744-840307e986ed" xlink:to="loc_us-gaap_PaymentsToAcquireOtherInvestments_019c919b-f702-703d-844d-2382e627ae2c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c919b-f702-745f-adb9-e2eda8102512" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019c919b-f702-76d0-8dcd-a4f2c24ceedb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c919b-f702-745f-adb9-e2eda8102512" xlink:to="loc_us-gaap_ProfitLoss_019c919b-f702-76d0-8dcd-a4f2c24ceedb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pten_DepreciationDepletionAmortizationAndImpairment_019c919b-f702-7aa2-861c-5ae2f9ae8a84" xlink:href="pten-20260331.xsd#pten_DepreciationDepletionAmortizationAndImpairment"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c919b-f702-745f-adb9-e2eda8102512" xlink:to="loc_pten_DepreciationDepletionAmortizationAndImpairment_019c919b-f702-7aa2-861c-5ae2f9ae8a84" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_019c919b-f702-715d-bca0-e6acc8ec23b0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c919b-f702-745f-adb9-e2eda8102512" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_019c919b-f702-715d-bca0-e6acc8ec23b0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_019c919b-f702-7873-b903-f489749d01d2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c919b-f702-745f-adb9-e2eda8102512" xlink:to="loc_us-gaap_ShareBasedCompensation_019c919b-f702-7873-b903-f489749d01d2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_019c919b-f702-76af-8574-d0c6174d13e9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c919b-f702-745f-adb9-e2eda8102512" xlink:to="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_019c919b-f702-76af-8574-d0c6174d13e9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncashIncomeExpense_019c919b-f702-7861-9125-a8c29dea43ed" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNoncashIncomeExpense"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c919b-f702-745f-adb9-e2eda8102512" xlink:to="loc_us-gaap_OtherNoncashIncomeExpense_019c919b-f702-7861-9125-a8c29dea43ed" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_019c919b-f702-7875-b24f-5ad488ebbd74" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c919b-f702-745f-adb9-e2eda8102512" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_019c919b-f702-7875-b24f-5ad488ebbd74" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_019c919b-f702-7372-a8b2-0c19df100133" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInInventories"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c919b-f702-745f-adb9-e2eda8102512" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_019c919b-f702-7372-a8b2-0c19df100133" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherCurrentAssets_019c919b-f702-7341-af7c-14fc6c2ae2da" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInOtherCurrentAssets"/>
    <link:calculationArc order="9" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c919b-f702-745f-adb9-e2eda8102512" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherCurrentAssets_019c919b-f702-7341-af7c-14fc6c2ae2da" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentAssets_019c919b-f702-7b72-9d55-3c929fc5c7d6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInOtherNoncurrentAssets"/>
    <link:calculationArc order="10" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c919b-f702-745f-adb9-e2eda8102512" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentAssets_019c919b-f702-7b72-9d55-3c929fc5c7d6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_019c919b-f702-7f0e-855d-4cae5d038e02" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccountsPayable"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c919b-f702-745f-adb9-e2eda8102512" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_019c919b-f702-7f0e-855d-4cae5d038e02" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_019c919b-f702-76b0-a4b6-c50935aa8d26" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities"/>
    <link:calculationArc order="12" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c919b-f702-745f-adb9-e2eda8102512" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_019c919b-f702-76b0-a4b6-c50935aa8d26" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_019c919b-f702-76ad-9343-c092f9642d0a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInOtherOperatingLiabilities"/>
    <link:calculationArc order="13" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c919b-f702-745f-adb9-e2eda8102512" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_019c919b-f702-76ad-9343-c092f9642d0a" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.patenergy.com/role/BasisofPresentationDetails" xlink:type="simple" xlink:href="pten-20260331.xsd#BasisofPresentationDetails"/>
  <link:calculationLink xlink:role="http://www.patenergy.com/role/BasisofPresentationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019c919b-f7ad-78af-a50e-32aec33b5d52" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019c919b-f7ad-7421-954d-9c164225a474" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019c919b-f7ad-78af-a50e-32aec33b5d52" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019c919b-f7ad-7421-954d-9c164225a474" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCash_019c919b-f7ad-7cde-839c-f089bfdbbf0d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestrictedCash"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019c919b-f7ad-78af-a50e-32aec33b5d52" xlink:to="loc_us-gaap_RestrictedCash_019c919b-f7ad-7cde-839c-f089bfdbbf0d" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.patenergy.com/role/InventoryDetails" xlink:type="simple" xlink:href="pten-20260331.xsd#InventoryDetails"/>
  <link:calculationLink xlink:role="http://www.patenergy.com/role/InventoryDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_019c919b-f7ad-77f2-93a2-a7bab1d5f1ab" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryFinishedGoodsNetOfReserves_019c919b-f7ad-7903-980c-8d6e5245cb36" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryFinishedGoodsNetOfReserves"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_019c919b-f7ad-77f2-93a2-a7bab1d5f1ab" xlink:to="loc_us-gaap_InventoryFinishedGoodsNetOfReserves_019c919b-f7ad-7903-980c-8d6e5245cb36" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryWorkInProcessNetOfReserves_019c919b-f7ad-7789-a44a-e9a9fc33e077" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryWorkInProcessNetOfReserves"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_019c919b-f7ad-77f2-93a2-a7bab1d5f1ab" xlink:to="loc_us-gaap_InventoryWorkInProcessNetOfReserves_019c919b-f7ad-7789-a44a-e9a9fc33e077" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryRawMaterialsAndSuppliesNetOfReserves_019c919b-f7ad-777c-84ba-fa59984efa24" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryRawMaterialsAndSuppliesNetOfReserves"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_019c919b-f7ad-77f2-93a2-a7bab1d5f1ab" xlink:to="loc_us-gaap_InventoryRawMaterialsAndSuppliesNetOfReserves_019c919b-f7ad-777c-84ba-fa59984efa24" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.patenergy.com/role/OtherCurrentAssetsDetails" xlink:type="simple" xlink:href="pten-20260331.xsd#OtherCurrentAssetsDetails"/>
  <link:calculationLink xlink:role="http://www.patenergy.com/role/OtherCurrentAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_019c919b-f7ad-7611-b17f-2d127af98b4c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxesReceivable_019c919b-f7ad-7ef5-bd9e-d32c0ec54d3d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxesReceivable"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsCurrent_019c919b-f7ad-7611-b17f-2d127af98b4c" xlink:to="loc_us-gaap_IncomeTaxesReceivable_019c919b-f7ad-7ef5-bd9e-d32c0ec54d3d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pten_WorkersCompensationReceivable_019c919b-f7ad-7bbd-b36c-536fdc16a2f6" xlink:href="pten-20260331.xsd#pten_WorkersCompensationReceivable"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsCurrent_019c919b-f7ad-7611-b17f-2d127af98b4c" xlink:to="loc_pten_WorkersCompensationReceivable_019c919b-f7ad-7bbd-b36c-536fdc16a2f6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseCurrent_019c919b-f7ad-7fcf-b3b8-7c1d4df8301f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PrepaidExpenseCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsCurrent_019c919b-f7ad-7611-b17f-2d127af98b4c" xlink:to="loc_us-gaap_PrepaidExpenseCurrent_019c919b-f7ad-7fcf-b3b8-7c1d4df8301f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherPrepaidExpenseCurrent_019c919b-f7ad-7e07-a189-97a4b60374df" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherPrepaidExpenseCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsCurrent_019c919b-f7ad-7611-b17f-2d127af98b4c" xlink:to="loc_us-gaap_OtherPrepaidExpenseCurrent_019c919b-f7ad-7e07-a189-97a4b60374df" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.patenergy.com/role/PropertyandEquipmentScheduleofPropertyandEquipmentDetails" xlink:type="simple" xlink:href="pten-20260331.xsd#PropertyandEquipmentScheduleofPropertyandEquipmentDetails"/>
  <link:calculationLink xlink:role="http://www.patenergy.com/role/PropertyandEquipmentScheduleofPropertyandEquipmentDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_019c919b-f7ad-756a-bc83-435a8fc718ed" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_019c919b-f7ad-7d1a-b452-8941d3ad97ed" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_019c919b-f7ad-756a-bc83-435a8fc718ed" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_019c919b-f7ad-7d1a-b452-8941d3ad97ed" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_019c919b-f7ad-7968-8246-3b1f6c2b9085" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_019c919b-f7ad-756a-bc83-435a8fc718ed" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_019c919b-f7ad-7968-8246-3b1f6c2b9085" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.patenergy.com/role/PropertyandEquipmentScheduleofDepreciationDepletionAmortizationandImpairmentExpenseDetails" xlink:type="simple" xlink:href="pten-20260331.xsd#PropertyandEquipmentScheduleofDepreciationDepletionAmortizationandImpairmentExpenseDetails"/>
  <link:calculationLink xlink:role="http://www.patenergy.com/role/PropertyandEquipmentScheduleofDepreciationDepletionAmortizationandImpairmentExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_pten_DepreciationDepletionAmortizationAndImpairment_019d8544-6efa-72a0-9802-1b292dfdfba3" xlink:href="pten-20260331.xsd#pten_DepreciationDepletionAmortizationAndImpairment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Depreciation_019d8544-6efa-7606-8d8f-f03fdff4ba8e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Depreciation"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_pten_DepreciationDepletionAmortizationAndImpairment_019d8544-6efa-72a0-9802-1b292dfdfba3" xlink:to="loc_us-gaap_Depreciation_019d8544-6efa-7606-8d8f-f03fdff4ba8e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pten_AmortizationExpenseOfIntangibleAssetsNetOfIntangibleLiabilities_019d8544-6efa-7eaf-b977-c545ed46f45a" xlink:href="pten-20260331.xsd#pten_AmortizationExpenseOfIntangibleAssetsNetOfIntangibleLiabilities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_pten_DepreciationDepletionAmortizationAndImpairment_019d8544-6efa-72a0-9802-1b292dfdfba3" xlink:to="loc_pten_AmortizationExpenseOfIntangibleAssetsNetOfIntangibleLiabilities_019d8544-6efa-7eaf-b977-c545ed46f45a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Depletion_019d8544-6efa-7f80-89d2-ed98c28bea1e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Depletion"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_pten_DepreciationDepletionAmortizationAndImpairment_019d8544-6efa-72a0-9802-1b292dfdfba3" xlink:to="loc_us-gaap_Depletion_019d8544-6efa-7f80-89d2-ed98c28bea1e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetImpairmentCharges_019d8547-e70c-7d41-b9e1-1bc07f8ee4b6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetImpairmentCharges"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_pten_DepreciationDepletionAmortizationAndImpairment_019d8544-6efa-72a0-9802-1b292dfdfba3" xlink:to="loc_us-gaap_AssetImpairmentCharges_019d8547-e70c-7d41-b9e1-1bc07f8ee4b6" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.patenergy.com/role/GoodwillandIntangibleAssetsScheduleofGrossCarryingAmountandAccumulatedAmortizationofIntangibleAssetsDetails" xlink:type="simple" xlink:href="pten-20260331.xsd#GoodwillandIntangibleAssetsScheduleofGrossCarryingAmountandAccumulatedAmortizationofIntangibleAssetsDetails"/>
  <link:calculationLink xlink:role="http://www.patenergy.com/role/GoodwillandIntangibleAssetsScheduleofGrossCarryingAmountandAccumulatedAmortizationofIntangibleAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019c919b-f7ad-7d29-9483-38b59f3df56b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_019c919b-f7ad-74b9-a1b9-a7441ecdd7d5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019c919b-f7ad-7d29-9483-38b59f3df56b" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_019c919b-f7ad-74b9-a1b9-a7441ecdd7d5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_019c919b-f7ad-7c79-8d31-1bea4432aca6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019c919b-f7ad-7d29-9483-38b59f3df56b" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_019c919b-f7ad-7c79-8d31-1bea4432aca6" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.patenergy.com/role/AccruedLiabilitiesDetails" xlink:type="simple" xlink:href="pten-20260331.xsd#AccruedLiabilitiesDetails"/>
  <link:calculationLink xlink:role="http://www.patenergy.com/role/AccruedLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_019c919b-f7ad-767c-8227-ae52af3ac4d4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_019c919b-f7ad-7135-aa74-b3c40d7f64c4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_019c919b-f7ad-767c-8227-ae52af3ac4d4" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_019c919b-f7ad-7135-aa74-b3c40d7f64c4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedInsuranceCurrent_019c919b-f7ad-7a59-981c-7cfdebff3e7f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedInsuranceCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_019c919b-f7ad-767c-8227-ae52af3ac4d4" xlink:to="loc_us-gaap_AccruedInsuranceCurrent_019c919b-f7ad-7a59-981c-7cfdebff3e7f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pten_PropertySalesUseAndOtherTaxesCurrent_019c919b-f7ad-7e21-a0e1-6214f835d859" xlink:href="pten-20260331.xsd#pten_PropertySalesUseAndOtherTaxesCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_019c919b-f7ad-767c-8227-ae52af3ac4d4" xlink:to="loc_pten_PropertySalesUseAndOtherTaxesCurrent_019c919b-f7ad-7e21-a0e1-6214f835d859" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestPayableCurrent_019c919b-f7ad-77d3-8ef6-9380db813bae" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestPayableCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_019c919b-f7ad-767c-8227-ae52af3ac4d4" xlink:to="loc_us-gaap_InterestPayableCurrent_019c919b-f7ad-77d3-8ef6-9380db813bae" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_019c919b-f7ad-7704-999c-a96ca5f47a26" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_019c919b-f7ad-767c-8227-ae52af3ac4d4" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_019c919b-f7ad-7704-999c-a96ca5f47a26" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedProfessionalFeesCurrent_019c919b-f7ad-738d-9518-37015651a5ba" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedProfessionalFeesCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_019c919b-f7ad-767c-8227-ae52af3ac4d4" xlink:to="loc_us-gaap_AccruedProfessionalFeesCurrent_019c919b-f7ad-738d-9518-37015651a5ba" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAccruedLiabilitiesCurrent_019d995a-741f-72d3-a438-253413f0eb12" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAccruedLiabilitiesCurrent"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_019c919b-f7ad-767c-8227-ae52af3ac4d4" xlink:to="loc_us-gaap_OtherAccruedLiabilitiesCurrent_019d995a-741f-72d3-a438-253413f0eb12" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.patenergy.com/role/BusinessSegmentsScheduleofFinancialInformationRelatingtoBusinessSegmentsDetails" xlink:type="simple" xlink:href="pten-20260331.xsd#BusinessSegmentsScheduleofFinancialInformationRelatingtoBusinessSegmentsDetails"/>
  <link:calculationLink xlink:role="http://www.patenergy.com/role/BusinessSegmentsScheduleofFinancialInformationRelatingtoBusinessSegmentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_019c919b-f7ad-7449-b341-c19d6e4c7d6f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Revenues"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019c919b-f7ad-7147-b8b7-dfdcda4bfcff" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_019c919b-f7ad-7449-b341-c19d6e4c7d6f" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019c919b-f7ad-7147-b8b7-dfdcda4bfcff" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueNotFromContractWithCustomer_019c919b-f7ad-73d2-9b85-c7fab80765a3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueNotFromContractWithCustomer"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_019c919b-f7ad-7449-b341-c19d6e4c7d6f" xlink:to="loc_us-gaap_RevenueNotFromContractWithCustomer_019c919b-f7ad-73d2-9b85-c7fab80765a3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019c919b-f7ad-7546-95c0-22ee56468020" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeInterest_019c919b-f7ad-7336-8537-4c68445ad5ee" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentIncomeInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019c919b-f7ad-7546-95c0-22ee56468020" xlink:to="loc_us-gaap_InvestmentIncomeInterest_019c919b-f7ad-7336-8537-4c68445ad5ee" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_019c919b-f7ad-7610-9d55-213bdb98c742" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019c919b-f7ad-7546-95c0-22ee56468020" xlink:to="loc_us-gaap_OperatingIncomeLoss_019c919b-f7ad-7610-9d55-213bdb98c742" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_019c919b-f7ad-74b5-9647-cdafb52730a6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019c919b-f7ad-7546-95c0-22ee56468020" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_019c919b-f7ad-74b5-9647-cdafb52730a6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseNonoperating_019c919b-f7ad-7304-9a4d-2d23648911fc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestExpenseNonoperating"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019c919b-f7ad-7546-95c0-22ee56468020" xlink:to="loc_us-gaap_InterestExpenseNonoperating_019c919b-f7ad-7304-9a4d-2d23648911fc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_019c919b-f7ad-7721-b97f-3da2f1ea5b66" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019c919b-f7ad-738d-bdad-21617ba741e1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_019c919b-f7ad-7721-b97f-3da2f1ea5b66" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019c919b-f7ad-738d-bdad-21617ba741e1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DirectOperatingCosts_019c919b-f7ad-718b-83d5-06b357b31efa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DirectOperatingCosts"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_019c919b-f7ad-7721-b97f-3da2f1ea5b66" xlink:to="loc_us-gaap_DirectOperatingCosts_019c919b-f7ad-718b-83d5-06b357b31efa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_019c919b-f7ad-7684-99fc-798b3bd03416" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_019c919b-f7ad-7721-b97f-3da2f1ea5b66" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_019c919b-f7ad-7684-99fc-798b3bd03416" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pten_DepreciationDepletionAmortizationAndImpairment_019c919b-f7ad-7e12-afa6-93e389c0f702" xlink:href="pten-20260331.xsd#pten_DepreciationDepletionAmortizationAndImpairment"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_019c919b-f7ad-7721-b97f-3da2f1ea5b66" xlink:to="loc_pten_DepreciationDepletionAmortizationAndImpairment_019c919b-f7ad-7e12-afa6-93e389c0f702" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingOtherItemAmount_019c919b-f7ad-7176-952c-a2539b3d8e10" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentReportingOtherItemAmount"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_019c919b-f7ad-7721-b97f-3da2f1ea5b66" xlink:to="loc_us-gaap_SegmentReportingOtherItemAmount_019c919b-f7ad-7176-952c-a2539b3d8e10" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>