RES Q2 2026 Earnings Presentation

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1 Corporate Overview Investor Presentation July 2026

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Cautionary Statement Relating to Forward-Looking Statements and Non-GAAP Measures 2 Certain statements and information included in this press release constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements generally relate to future events or performance and often can be identified by the use of words such as “may,” “will,” “should,” “could,” “anticipate,” “believe,” “estimate,” “expect,” “intend,” “plan,” “project,” “target,” “potential,” “continue,” or similar expressions. In p articular, forward-looking statements in this press release include, without limitation, the Company’s statements regarding (i) “reasons for optimism” about its business, including improved pricing and activity visibility, (ii) the opportunity to “support targeted growth through a modest increase in CapEx,” (iii) the Company’s ability to “invest opportunistically” based on its balance sheet, and (iv) the Company being “well positioned” with strong brands, a strong balance sheet, and a disciplined focus on full cycle returns that drive long term shareholder value. These forward-looking statements are based on the Company’s current expectations and assumptions and are subject to a number of risks and uncertainties, many of which are beyond the Company’s control, that could cause actual results to differ materially from those expressed or implied by the forward-looking statements. These risks and uncertainties include, among others, changes in the price of oil and natural gas and the overall performance of the U.S. and global economies; levels of capital spending by our customers and the resulting demand for our services; the impact of tariffs and other trade actions, which may increase our cost of materials and affect our profitability; business interruptions due to adverse weather conditions or other natural or man-made disasters; changes in the competitive environment of our industry; political instability and geopolitical events in petroleum-producing regions of the world, including actions by the United States or other governments, such as the recent actions by the United States in Iran and Vene zuela, and any related sanctions or disruptions of key transportation routes such as the Strait of Hormuz; actions of OPEC and other oil producing nations; our customers’ drilling and production activities; and our ability to identify, consummate and successfully integrate acquisitions and/or other strategic investments or transactions. Additional factors that could cause actual results to differ materially from management’s projections, forecasts, estimates and expectations are described under “Risk Factors,” “Forward-Looking Statements” and elsewhere in the Company’s Annual Report on Form 10-K for the year ended December 31, 2025, and in other reports and filings with the Securities and Exchange Commission. Forward-looking statements speak only as of the date of this press release, and readers are cautioned not to place undue reliance on such statements. The Company u ndertakes no obligation to publicly update or revise any forward-looking statements after the date of this press release, whether as a result of new information, future events or otherwise, except as required by applicable law. RPC, Inc. has used the non-GAAP financial measures of Adjusted operating income, Adjusted net income, Adjusted net income margin , Adjusted earnings per share, Adjusted EBITDA, Adjusted EBITDA margin and free cash flow in today's earnings release. These measures should not be considered in iso lation or as a substitute for performance or liquidity measures prepared in accordance with GAAP. Management believes that presenting these non-GAAP measures, other than free cash flow, enables investors to compare the operating performance of our core business consistently over various time periods, without regard to acquisition related employment costs and changes in our accounting for purchases of wireline cables, and in the case of Adjusted EBITDA and Adjusted EBITDA margin, without regard to changes in our capital structure. Management believes that free cash flow, which measures our ability to generate additional cash from our business operations, is an important financial measure for use in evaluating RPC's liquidity. Free cash flow should be considered in addition to, rather than as a substitute for, net cash provided by operating activities as a measure of our liquidity. Additionally, RPC’s definition of free cash flow is limited, in that it does not represent residual cash flows available for discretionary expenditures, due to the fact that the measure does not deduct the payments required for debt service and other contractual obligations or payments made for business acquisitions. Therefore, management believes it is important to view free cash flow as a measure that provides supplemental information to our Condensed Consolidated Statements of Cash Flows. A non-GAAP financial measure is a numerical measure of financial performance, financial position, or cash flows that either 1) excludes amounts, or is subject to adjustments that have the effect of excluding amounts, that are included in the most directly comparable measure calculated and presented in a ccordance with GAAP in the statement of operations, balance sheet or statement of cash flows, or 2) includes amounts, or is subject to adjustments that have the effect of including amounts, that are excluded from the most directly comparable measure so calculated and presented. Set forth in the appendices below are reconciliations of these non-GAAP measures with their most directly comparable GAAP measures. These reconciliations also appear on RPC, Inc.'s investor website, which can be found at www.rpc.net.

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3 PRESENTATION AGENDA ❑Business Overview & Financial Goals ❑ Industry Key Themes & Business Overview ❑ Strategic Imperatives, Framework & Actions ❑ Financial Performance

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4 Track record of profitability and FCF Create long-term shareholder value by delivering world-class oilfield services to our customers with a conservative financial management approach Investment Highlights Financial discipline in cyclical industry Consistent dividend and opportunistic buybacks Diversified OFS business, attractive service line mix Corporate Objective Strong balance sheet supports further M&A

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5 Company Snapshot 10-year financial highlights ▪ Cumulative operating cash flow: $2,106 million ▪ Cumulative capex: $1,466 million ▪ Cumulative free cash flow: $640 million ▪ Dividends paid: $300 million ▪ Stock repurchased: $117 million ▪ Average ROIC of 21% (see page 21 for additional details) ▪ 2023 acquisition of Spinnaker (cementing) for $80 million ▪ 2025 acquisition of Pintail (wireline) for $245 million Financial Snapshot LT track record of profitability, cash flow, and discipline in a cyclical and often volatile industry $ millions 2023 2024 2025 3-year avg Revenues $1,617.5 $1,415.0 $1,626.6 $1,553.0 Net Income $195.1 $91.4 $32.1 $106.2 Adjusted EBITDA (1) $374.4 $233.0 $232.7 $280.0 Operating Cash Flow (OCF) $394.8 $349.4 $201.3 $315.2 Free Cash Flow (1) (OCF less Capex) $213.8 $129.5 $52.9 $132.1 Dividends $34.6 $34.4 $35.1 - Cash (year-end balance) $223.3 $326.0 $210.0 - LT Debt (year-end balance) $0.0 $0.0 $30.0 (2) - (1) Adjusted EBITDA and free cash flow are non-GAAP financial measures, please refer to non-GAAP disclosures and reconciliations in the appendix of this presentation (2) LT Debt for 2025 includes seller financed note related to the acquisition of Pintail

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Business Overview 6 Balanced service line portfolio among the most diversified in the oilfield, with over 50% of revenues generated in Permian Basin Diversified Service Lines ▪ Less capital intensive, high cash flow ▪ ≈ 2/3rd of total RPC revenues ▪ Broader customer base, also service large Tier 1 customers ▪ More geographically diverse Pressure Pumping ▪ Capital intensive business spot/semi- dedicated customers ▪ Becoming smaller % of total revenues with recent acquisitions, now ≈ 1/3rd ▪ Permian-centric Strategic acquisitions in diversified service lines evolving RPC’s business to lower capital intensity operations with broader, steadier customer base * Adjusted for Pintail Completions acquisition, closed April 1, 2025 Pressure Pumping, 28% Coiled Tubing, 9% Cementing, 6% Downhole Tools, 23% Wireline, 25% All Other, 8% 2025 Pro Forma* Revenues $1.7 Billion Split by Service Line

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7 PRESENTATION AGENDA ❑ Business Overview & Financial Goals ❑Industry Key Themes & Business Overview ❑ Strategic Imperatives, Framework & Actions ❑ Financial Performance

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Industry Key Themes 8 Oilfield services is capital intensive and highly competitive. Efficiency gains in pressure pumping (PP) have created excess industry capacity ▪ Insufficient demand to absorb increased capacity driving price competition to maximize utilization ▪ RPC has remained disciplined, opting to idle assets rather than burn equipment on low-return projects E&P consolidation has been swift >>> fewer, larger customers, though more consistent production and capital discipline ▪ Several large private customers have been acquired by larger public E&Ps ▪ Capital discipline resulting in large E&Ps reducing production volatility ▪ RPC is focused on strengthening its customer mix with acquisitions and increasing its presence with larger, Tier 1 customers OFS consolidation is likely to pick up; OFS small-cap publics lack scale (often have high leverage), while privates are often small and under- capitalized ▪ Large E&Ps favor OFS provider scale ▪ Potential cost synergies and other scale benefits from OFS mergers ▪ RPC has strong balance sheet and is an acquirer of choice for smaller privates given service line independence; private equity unlikely to invest substantial new capital in OFS Frac fleet evolution has accelerated with more large E&Ps requiring modern/upgraded Tier 4 dual-fuel (DGB) or electric assets ▪ Pressure pumpers have made significant investments in both dual-fuel (DGB) and electric assets ▪ RPC investments focused on Tier 4 DGB; not yet invested in electric, but will likely address strategically to expand our frac customer base and strengthen customer mix

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9 RPC Offers a Diversified Portfolio of Services, Mostly at the Customers’ Well Sites During Completion What is well completion? • Installation and cementing of production casing into a drilled well • Preparation of the cased well to begin producing hydrocarbons - Perforation (using wireline services) of the well casing to allow hydrocarbons to flow into the well - Stimulation of one or more zones using hydraulic fracturing (or pressure pumping) to expose surface area of hydrocarbon-producing zones - Drilling out bridge plugs (using coiled tubing and downhole tools) used to isolate fracturing zones during stimulation A multi-stage unconventional completion operation. This well bore has many perforations to expose it to a horizontal production zone. RPC’s cementing, hydraulic fracturing, perforating, coiled tubing, and downhole tools and motors could be used to conduct this completion operation.

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10 RPC Service Offerings: Diversified across service lines, basins, customer size Pressure Pumping, 28%* ▪ Largest total addressable market in OFS ▪ Currently most capital intensive, competitive and volatile business ▪ Historically very profitable during “up-cycles” ▪ Smaller, spot-market customers ▪ Operating primarily in Permian Basin ▪ 11 horizontal equivalent total fleets: 3 Tier 4 DGB fleets ▪ Selective M&A for scale or technology Wireline, 25%* ▪ Pintail acquisition in April 2025; Pintail generated $400+ million in 2024 ▪ Concentrated in Permian basin focused on premium customer base ▪ Recently invested heavily in new/electric assets ▪ Strong management team with reputation for service and quality ▪ Relatively low capital intensity Cementing, 6%* ▪ Spinnaker acquisition in 2023 was great fit, extended RPC into other basins ▪ Now strong in Permian, Eagle Ford and Mid- Con, further opportunities to grow ▪ Diversified customer base ▪ Low capital intensity ▪ Possible M&A All Other, 8%* ▪ Includes Rental Tools, Nitrogen, Snubbing, Water Management, etc. ▪ Some M&A opportunities ▪ Low capital intensity and solid margins * % of revenues based on full year 2025, pro forma for April 1, 2025 acquisition of Pintail Completions (wireline) Downhole Tools, 23%* ▪ Smaller total addressable market than pressure pumping ▪ TTS has strong market share ▪ Strong innovation, R&D, patent portfolio ▪ Premium customer base ▪ Geographically diversified ▪ Low capital intensity ▪ Possible M&A Coiled Tubing, 9%* ▪ Delivering improved returns with recent capital investments ▪ Over 30 units: 2/3rds larger diameter units, 1/3rd smaller units for special projects ▪ Diversified customer base ▪ Medium capital intensity ▪ U.S. market is fragmented… ▪ Growth opportunities through M&A

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11 PRESENTATION AGENDA ❑ Business Overview & Financial Goals ❑ Industry Key Themes & Business Overview ❑Strategic Imperatives, Framework & Actions ❑ Financial Performance

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12 LOREM IPSUM HERE Subtitle Strategic Imperatives We believe these imperatives represent our keys to success in achieving our corporate objective. Improve margins, innovate and optimize assets Rebalance portfolio, grow high-return service lines Increase operational scale and leverage costs through M&A Strengthen and “upgrade” customer mix Create long-term shareholder value by delivering world-class oilfield services to our customers with a conservative financial management approach With 1) increased scale, 2) track record of successfully acquiring and integrating solid businesses, and 3) a robust M&A pipeline to drive further growth, RPC should have greater strategic and financial optionality

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13 Strategic Framework How we generate, distribute, and grow our cash flow ▪ How we generate cash flow ▪ Day-to-day operations ▪ Tactical approach to winning in the marketplace ▪ Focus on customer acquisition and retention, well-site execution, profitability Capital Allocation ▪ What we do with our cash flow ▪ Balance growth investments with return of capital through dividends and buybacks ▪ Conservative approach; prudent use of leverage ▪ How we invest to grow our cash flow ▪ Prioritizing areas for investment… both organic (innovation and capacity) and M&A with potential to use cash or equity ▪ Driven by returns, competitive position and attractiveness of service lines (differentiation, competition, demand trends)

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14 Strategic Framework All actions we take are aligned with our strategic imperatives Operations ▪ Drive a culture of highly engaged and empowered employees ▪ Provide safe, high quality, well- maintained equipment ▪ Deliver outstanding service and strong logistical support ▪ Maintain a flexible cost structure ▪ Profitably optimize asset utilization ▪ Avoid wearing out capital intensive assets on low-return projects; idle equipment as appropriate Capital Allocation ▪ Maintain a conservative capital structure to ensure liquidity during downturns ▪ Rigorously manage working capital to maximize cash flow ▪ Balance investments in the Company (both organic and M&A) and returns to shareholders ▪ Pay regular quarterly dividends; no planned significant special dividends ▪ Maintain an active opportunistic share buyback program Growth ▪ Remain highly disciplined when organically adding new incremental revenue-producing equipment ▪ Differentiate with innovative new products and specialized services ▪ Invest for growth in service lines with high returns and strong free cash flow ▪ Acquire high-quality companies (at reasonable valuations) that would increase our operational scale, rebalance service line mix, diversify our basin exposures, and strengthen our customer mix; many suitable targets ▪ Favor domestic operations

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15 Growth Strategy Executing growth strategy drives credibility, creates long-term value and ultimately supports strategic optionality Use our strong balance sheet to make strategic acquisitions and organic investments to: - Increase operational scale and leverage costs - Rebalance service line portfolio - Strengthen customer mix - Improve margins and free cash flow

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16 Strategic Actions We have, and will continue to execute, a variety of actions Spinnaker (Cementing) (2023) - Build pipeline of additional tuck-ins - Explore larger, more transformative deals M&A New products and services Monetize assets Cost reductions IT projectsOrganic Pintail (Wireline) (2025)

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17 Recent Acquisition Have targeted OFS businesses with strong cash flows; we believe we are a “buyer of choice” with ample opportunities for further acquisitions Pursue more tuck-ins, but also explore transformational M&A opportunities that can deliver strong cost synergies, provide access to electric technology and dramatically increase scale Spinnaker Cementing ▪ Purchase price ~$79 million; closed mid-2023 ▪ Dramatically expanded cement service line ▪ Permian and Mid-Con operations ▪ Excellent reputation for service and value ▪ High quality customer base ▪ Tenured management team ▪ Low capex - high cash flow Pintail Wireline ▪ $245 million purchase price; closed April 2025 ▪ $409 million of 2024 revenues, solid profitability ▪ Gives RPC a top U.S. wireline position ▪ Concentrated blue chip customer base ▪ Strong reputation for service and asset quality ▪ Potential bundle with pumping/downhole tools ▪ Low capex - high cash flow

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18 Organic Action Plans Win in the marketplace by distinguishing ourselves with best-in-class service, operations, customer support and technology ▪ Upgrade pumping fleets to Tier 4 DGB while decommissioning legacy Tier 2 diesel assets (no capacity growth) ▪ Consider options to offer electric fleets (outsource, partnerships/JVs) ▪ Innovation in Downhole Tools, such as new motors, and revolutionary plug technology solutions ▪ Pursue unique/proprietary specialized services such as plug and abandonment work Products & Services ▪ Recently closed pressure pumping Kilgore operation ▪ Pumping and other service lines are evaluating headcount vs expected activity levels ▪ Optimize sourcing solutions (rent vs own): e.g., CPC purchased a rental item after pricing increased 3x, 18- month payback from cost avoidance ▪ Evaluate locations with suboptimal financial performance for closure Cost Reductions ▪ Update systems to drive real-time access to accurate information for analysis to drive better business decisions, improve financial reporting processes and guard against cyber-security threatsIT Projects ▪ Explore potential sales of non-core real estate holdings ▪ Explore divesting small, non-core service lines to simplify our portfolio of service lines Monetize Assets

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19 Investing in Assets and Innovation RPC is focused on upgrading its assets and equipment and developing differentiated products, services and technologies Drill-out Motors Downhole Tools ▪ Launched new 3.5-inch motor in mid-2024 ▪ Model delivers industry- leading performance - power, reliability, and efficiency in demanding drilling environment ▪ Engineered to deliver exceptional torque output while maintaining an ultra-low pressure drop Plug & Abandon Coiled Tubing ▪ Specialized capabilities to address unique P&A project opportunities ▪ Proprietary directional drilling and magnetic ranging to identify points of dislocation in downhole casing due to seismic shifts ▪ Proven technology, potential demand ramp as regulations require E&P actions Perf Plugs Downhole Tools ▪ Launched proprietary and innovative Unplug system in late 2024 ▪ Potential to disrupt $500 million frac plug market ▪ Perf Pods to block flow at each individual perforation, with numerous performance and risk advantages ▪ Feedback and initial orders from customers have been very positive New Fleets Pressure Pumping ▪ Tier 4 dual-fuel pressure pumping fleets are preferred asset for investment ▪ Have 3 Tier 4 DGB fleets ▪ Purchased 1 fleet in 2023 and another in 2024 ▪ Approximate capital investment of $50 to $60 million per fleet

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20 PRESENTATION AGENDA ❑ Business Overview & Financial Goals ❑ Industry Key Themes & Business Overview ❑ Strategic Imperatives, Framework & Actions ❑Financial Performance

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21 Company Snapshot Financial & Capital Returns 0.0% 5.0% 10.0% 15.0% 20.0% 25.0% 30.0% 35.0% 40.0% 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 Return on Invested Capital(1) (1) Calculated as operating cash flow / average invested capital (2) Free cash flow is a non-GAAP measure, please refer to non-GAAP disclosures and reconciliations in the appendix of this presentation 21% 10-year average ROIC, with resilience even during pandemic; track record of dividends and buybacks Despite an often volatile industry, RPC has prudently managed operational and financial risk while delivering strong returns on capital and returning excess cash to investors • 10-year cumulative operating cash flow: $2.1 billion • Free cash flow(2) during the period was over $639 million of which roughly $417 million was returned to shareholders Capital Expenditures, $1,466 Dividends, $300 Share Repurchases, $117 Acquisitions, $232 10-year Capital allocation

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22 Company Snapshot Annual Financial Results & Trends $000s (except EPS) 2023 2024 2025 Revenues $1,617,474 $1,414,999 $1,626,566 Net Income $195,113 $91,444 $32,080 Net Income Margin 12.1% 6.5% 2.0% EPS $0.90 $0.43 $0.15 Adjusted EPS (1) $0.97 $0.43 $0.25 Adj. EBITDA (1) $374,394 $232,967 $232,668 Adj. EBITDA Margin (1) 23.1% 16.5% 14.3% Operating Cash Flow $394,763 $349,386 $201,331 Capital Expenditures $181,005 $219,330 $148,407 Capex as % of Revenues 11.2% 15.5% 9.1% Free Cash Flow (OCF less Capex) (1) $213,758 $129,456 $52,924 Acquisitions $78,798 - 153,420 Dividends $34,562 $34,443 $35,122 Share Repurchases $21,088 $9,938 $2,868 Despite challenging and competitive industry, RPC has delivered robust cash flow and remains debt-free (1) Adjusted EPS, Adjusted EBITDA, Adjusted EBITDA Margin and free cash flow are non-GAAP financial measures, please refer to non-GAAP disclosures and reconciliations in the appendix of this presentation

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23 Company Snapshot Second Quarter 2026 Earnings Release Summary Second Quarter 2026 Highlights • Revenues increased 1% sequentially to $460.9 million • Net income was $12.1 million, compared to Net income of $0.9 million in the prior quarter, and diluted Earnings Per Share (EPS) was $0.05; Net income margin increased 240 basis points sequentially to 2.6% • Adjusted net income was $17.8 million, compared to $7.6 million in the prior quarter, and Adjusted diluted EPS was $0.08; Adjusted net income margin was 3.9%. See Appendices B and C for additional details • Adjusted Earnings Before Interest, Taxes, Depreciation and Amortization (EBITDA) was $66.0 million, compared to $53.5 million in the prior quarter; Adjusted EBITDA margin increased 250 basis points sequentially to 14.3%. See Appendix C for additional details • The Board of Directors declared a regular quarterly cash dividend of $0.04 per share, payable on September 10, 2026, to common stockholders of record at the close of business on August 10, 2026 Management Commentary “During the quarter our Technical Services segment experienced modest revenue increases. Within Technical Services, Cudd Pressure Controls’ Snubbing, Spinnaker’s Cementing, and Thru-Tubing Solutions’ Downhole Tools generated double-digit revenue increases, which were mostly offset by lower Pintail Wireline revenues. Our Support Services segment revenues were up 11% sequentially led by Patterson Rental Tools, which generated a 21% increase compared to the seasonally weak first quarter.” “During the second quarter we saw reasons for optimism with some improved pricing and activity visibility. This allowed us an opportunity to support targeted growth through a modest increase in CapEx. Oil price volatility keeps us cautious, but our balance sheet affords us the ability to invest opportunistically.” “As previously announced, after 30 years with RPC, I believe now is the right time to retire and transition to the Company's next generation of leadership. I am committed to working closely with the Board to ensure continuity and a smooth transition, leaving RPC well-positioned with strong brands, a solid balance sheet, and a disciplined focus on full cycle returns that drive long-term shareholder value. I am blessed to have spent the last three decades working with a wonderful and dedicated group of people,” stated Ben M. Palmer, RPC’s President and Chief Executive Officer.

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THANK YOU 24 Corporate Headquarters: 2801 Buford Highway NE Suite 300 Atlanta, GA 30329 (404) 321-2140 IRDept@RPC.net RPC.net

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25 Financial Results

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26 NON -GAAP MEASURES RPC, Inc. has used the non-GAAP financial measures of Adjusted operating income, Adjusted net income, Adjusted net income margin, Adjusted earnings per share, Adjusted EBITDA, Adjusted EBITDA margin and free cash flow in today's earnings release. These measures should not be considered in isolation or as a substitute for performance or liquidity measures prepared in accordance with GAAP. Management believes that presenting these non-GAAP measures, other than free cash flow, enables investors to compare the operating performance of our core business consistently over various time periods, without regard to acquisition related employment costs and changes in our accounting for purchases of wireline cables, and in the case of Adjusted EBITDA and Adjusted EBITDA margin, without regard to changes in our capital structure. Management believes that free cash flow, which measures our ability to generate additional cash from our business operations, is an important financial measure for use in evaluating RPC's liquidity. Free cash flow should be considered in addition to, rather than as a substitute for, net cash provided by operating activities as a measure of our liquidity. Additionally, RPC’s definition of free cash flow is limited, in that it does not represent residual cash flows available for discretionary expenditures, due to the fact that the measure does not deduct the payments required for debt service and other contractual obligations or payments made for business acquisitions. Therefore, management believes it is important to view free cash flow as a measure that provides supplemental information to our Condensed Consolidated Statements of Cash Flows. A non-GAAP financial measure is a numerical measure of financial performance, financial position, or cash flows that either 1) excludes amounts, or is subject to adjustments that have the effect of excluding amounts, that are included in the most directly comparable measure calculated and presented in accordance with GAAP in the statement of operations, balance sheet or statement of cash flows, or 2) includes amounts, or is subject to adjustments that have the effect of including amounts, that are excluded from the most directly comparable measure so calculated and presented. Set forth in the appendices below are reconciliations of these non-GAAP measures with their most directly comparable GAAP measures. These reconciliations also appear on RPC, Inc.'s investor website, which can be found at www.rpc.net.

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27 NON -GAAP MEASURES

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28 NON -GAAP RECONCILIATION

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29 NON -GAAP RECONCILIATION

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30 NON -GAAP RECONCILIATION

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