RES Q3 2025 Earnings Presentation

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1 Corporate Overview Investor Presentation October 2025

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Cautionary Statement Relating to Forward-Looking Statements and Non-GAAP Measures 2 Certain statements and information included in th is press release constitute “forward-looking statements” within the meaning of the Private Secur ities Litigation Reform Act of 1995. Such forward-looking statements include statements th at look forward in time or express management’s beliefs, expectations or h opes. In particular, such statements include, without limitation: our belief tha t our diversified offerings and strong brands and balance sheet provide res iliency; our statement that, despite our resilience, the challe nging environment continues to require disciplin ed execution; our belief that the oilfield serv ices market is likely to face additional headwinds during the fourth quarter in connection with o il prices recently dipping below $60 a barrel, expected holiday slow downs ,a n d customer budget exhaustion; our statement that we will continue to take incremental cost reductions; our statement that we will invest in our busines ses prudently and focus on full cycle returns; our expectation that the remaini ng Acquisition employment costs will be recognized equally over the next 1 0 quarters. Risk factors that could cause such future events not to occur as expected inclu d et h ef o l l o w i n g :t h ep r i c eo fo i la n dn a t u r a lg a sa n do v e r a l lp e r f o r m a n ceo ft h e U.S. economy, both of which can impact capital spending by our customers a nd demand for our services; the impact of tariffs, which may increase our cost of materials and impact our profitability, business interruptions due to adv erse weather conditions; changes in the competitive environment of our in dustry; political instability in the petroleum-producing regions of the world; the actions of the OPEC oil cartel; our customers’ drilling and production activities; the risk that our assessments, such as regarding the oversupplied nature of oilfield service s, will turn out incorrect; and our ability to identify and complete acqui sitions and/or other strategic investments or transactions. Additional factors that cou ld cause the actual results to differ ma terially from management’s projections, forecasts, estimates, and expectations are contained in RPC’s Form 10-K for the year ended December 31, 2024. RPC, Inc. has used the non-GAAP financial measures of adjusted revenues, adjusted operating income, adjusted net income, adjusted net income margin,a d j u s t e d earnings per share, adjusted EBITDA, adjusted EBITDA margin and free cash flow in today's earnings release. These measures should not be considered ini s o l a t i o no r 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 o ur core business consistently over various time periods, and in the case of Adjusted EBITDA, 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 evaluati n gR P C ' sl i q u i d i t y .F r e ec a s hf l o ws h o u l db ec o n s i d e r e di na d d i t i o nt o ,r a ther than as a substitute for, net cash provided by operating activities as a measure of ou r 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 i s 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 atwww.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: $2,378 million  Cumulative capex: $1,485 billion  Cumulative free cash flow: $893 million  Dividends paid: $299 million  Stock repurchased: $118 million  Average ROIC of 23% (see page 22 for additional details)  2023 acquisition of Spinnaker (cementing) for $80 million  2025 acquisition of Pintail (wireline) for $245 million Financial Snapshot LT track record of profitability, cash flow, and discipline in a cyclical and often volatile industry 3-year avg202420232022$ millions $1,544.7$1,415.0$1,617.5$1,601.8Revenues $168.3$91.4$195.1$218.4Net Income $327.5$233.0$374.4$375.0Adjusted EBITDA (1) $315.1$349.4$394.8$201.3Operating Cash Flow (OCF) $135.0$129.5$213.8$61.7Free Cash Flow (1) (OCF less Capex) NM$34.4$34.6$8.6Dividends NM$326.0$223.3$126.4Cash (year-end balance) NM$0.0$0.0$0.0LT Debt (year-end balance) (1) Adjusted EBITDA and free cash flow are non-GAAP financial measures, please refer to non-GAAP disclosures and reconciliation s in the appendix of this presentation

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Business Overview 6 Balanced service line portfolio among the most diversified in the oilfield, with over 60% of revenues generated in Permian Basin Pressure Pumping, 32% Wireline, 23% Downhole Tools, 21% Coiled Tubing, 7% Cementing, 6% All Other, 11% 2024 Pro Forma* Revenues $1.8 Billion Split by Service Line 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 ≈ 1/3 rd  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

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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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12,500 12,600 12,700 12,800 12,900 13,000 13,100 13,200 13,300 13,400 13,500 100 200 300 400 500 600 700 800 Oil Production Frac Spreads & Total U.S. Rigs US Oil Production vs D&C Assets Frac Spreads Total U.S. Rigs U.S. Field Crude Oil Production - 000s bbl/d Industry Key Themes 8  Oil generally rangebound from $70 - $90 for 2 years  Oil production: trending higher  Rig count: trending lower  Frac spreads: trending lower OFS companies are having to redefine operating models to improve efficiencies, exhibit capital discipline and translate value delivered to our customers into shareholder value creation The oilfield is doing more with less.

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Industry Key Themes 9 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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10 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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11 RPC Service Offerings: Diversified across service lines, basins, customer size Pressure Pumping, 32%*  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, 23%*  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, 10%*  Includes Rental Tools, Nitrogen, Snubbing, Water Management, etc.  Some M&A opportunities  Low capital intensity and solid margins * % of revenues based on full year 2024, pro forma for April 1, 2025 acquisition of Pintail Completions (wireline) Downhole Tools, 21%*  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, 7%*  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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12 PRESENTATION AGENDA  Business Overview & Financial Goals  Industry Key Themes & Business Overview Strategic Imperatives, Framework & Actions  Financial Performance

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13 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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14 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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15 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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16 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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17 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 projects Organic Pintail (Wireline) (2025)

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18 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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19 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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20 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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21 PRESENTATION AGENDA  Business Overview & Financial Goals  Industry Key Themes & Business Overview  Strategic Imperatives, Framework & Actions Financial Performance

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22 Company Snapshot Financial & Capital Returns 0.0% 5.0% 10.0% 15.0% 20.0% 25.0% 30.0% 35.0% 40.0% 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 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-G AAP disclosures and reconciliations in the appendix of this presentation 23% 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: $2.4 billion • Free cash flow(2) during the period was over $890 million of which nearly $420 million was returned to shareholders Capital Expenditures, $1,485 Dividends, $299 Share Repurchases, $118 Acquisitions, $79 10-year Capital allocation

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23 Company Snapshot Annual Financial Results & Trends 202420232022$000s (except EPS) $1,414,999$1,617,474$1,601,762Revenues $91,444$195,113$218,363Net Income 6.5%12.1%13.6%Net Income Margin $0.43$0.90$1.01EPS $0.43$0.97$1.02Adjusted EPS (1) $232,967$374,394$375,013Adj. EBITDA (1) 16.5%23.1%23.4%Adj. EBITDA Margin (1) $349,386$394,763$201,286Operating Cash Flow $219,330$181,005$139,552Capital Expenditures 15.5%11.2%8.7%Capex as % of Revenues $129,456$213,758$61,734Free Cash Flow (OCF less Capex) (1) -$78,798-Acquisitions $34,443$34,562$8,645Dividends $9,938$21,088$918Share Repurchases 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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24 Company Snapshot Third Quarter 2025 Earnings Release Summary Third Quarter 2025 Results • Revenues increased 6% sequentially to $447.1 million • Net income was $13.0 million, up 28% se quentially, and diluted Earnings Per Share (EPS) was $0.06; Net income margin increased 50 basis points sequentially to 2.9% • Adjusted net income, was $18.4 million, up 5% sequentially, and adjusted diluted Earnings per Share (EPS) was $0.09; Adjusted net income margin remained relatively unchanged at 4.1% • Adjusted Earnings Before Interest, Taxes, Depreciation and Amortization (EBITDA) was $72.3 million, up 10% sequentially; Adjusted EBITDA margin increased 60 basis points sequentially to 16.2% Management Commentary “Sequentially we saw most of our service line revenues improve including pressure pumping, which saw a 14% increase from a soft second quarter. Cudd Pressure Control’s coiled tubing business also posted a 19% increase, supported by the deployment of a new large diameter unit. Additionally, Thru-Tubing Solutions’ downhole tools business continued to experience strong demand, driven by new product introductions that deliver leading performance for our customers. Patterson Services’ rental tools and Pintail’s wireline also saw modest increases in the quarter,” stated Ben M. Palmer, RPC’s President and Chief Executive Officer. “Our diversified offerings, strong brands, and balance sheet provide resiliency, yet the challenging environment continues to require disciplined execution.” “During the quarter we saw signs of stabilization, and even improvement, with August and September results higher than the June lows. However, with oil prices recently dipping below $60 a barrel and expected holiday slow downs and customer budget exhaustion, the oilfield services market is likely to face additional headwinds during the fourth quarter. Given these market conditions, we have and will continue to make incremental cost reductions during the quarter. We will invest in our businesses prudently and focus on full cycle returns.”

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THANK YOU 25 Corporate Headquarters: 2801 Buford Highway NE Suite 300 Atlanta, GA 30329 (404) 321-2140 IRDept@RPC.net RPC.net

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26 2025 Third Quarter Financial Results

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27 NON-GAAP MEASURES RPC, Inc. has used the non-GAAP financial measures of adjusted revenues, 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, and in the case of Adjusted EBITDA, 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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28 NON-GAAP RECONCILIATION

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29 NON-GAAP RECONCILIATION

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