Enhancing Predictability and Reliability Through Built-for-Purpose RSS Christian Menger – VP Technology D-Tech Rotary Steerable

D-Tech Rotary Steerable Company Overview Independent developer & provider of built-for- purpose RST for the global land drilling market Not a service company: a Technology Provider & Performance Enabler Direct access: equipment, expertise & support Helping customers deliver challenging directional, horizontal, & tight-tolerance vertical wells Office locations: Eastern Hemisphere: Engineering office, Bristol, UK Western Hemisphere: Operations HQ, Houston, TX Independent developer & provider of built-for-purpose RSS for global land drilling market Not a service company, but Technology Provider & Performance Enabler Provide direct access to equipment, technical expertise & product/operations support Enabling customers deliver most challenging directional, horizontal, & tight-tolerance vertical wells Two office locations: Eastern Hemisphere: Engineering office, Bristol, UK Western Hemisphere: Operations HQ, Houston, TX

North America Land – Historical Challenge Dominated by conventional drilling Driven by smaller independents Equipment inconsistencies BHA configuration variability Harsh drilling environment High vibration Basin-to-basin complexity LCM concentrations High DLS curves with long laterals High ROP demand Traditional RSS  high-tier tools North America Land dominated by conventional drilling DD market driven by smaller independents Inconsistent motor & MWD quality, performance & reliability Immense variability in BHA component configurations Harsh drilling environment High vibration – HFTO/stick-slip/whirl Basin-to-basin drilling complexity (lithology, faults, drilling fluids, losses,...) LCM concentrations High DLS curves with long laterals (2-3 miles) – Lease boundaries driven Push for high ROP Traditional RSS designed for complex, high risk / high cost offshore drilling environments

RSS – Commercial Product Categories Pros Cons Non-Rotating Stabilizer ▪ R&M costs/time; ▪ Complexity; ▪ Limited; vibration, torque, scalability, overpull; ▪ Poor hole cleaning; ▪ Hang-up risk – limited torque transfer ▪ Low power Point-the-Bit Fully Rotating ▪ Hole cleaning ▪ Soft formation DLS ▪ R&M costs/time; ▪ Complexity; ▪ Limited: vibration, torque, scalability, overpull; ▪ High power demand; ▪ Hole quality/gauge/spiraling RSS ▪ R&M costs/time; ▪ Complexity; ▪ Limited: vibration, torque, scalability, overpull; ▪ Poor hole cleaning; ▪ Hang-up risk – limited torque transfer; ▪ Soft formation DLS Non-Rotating Stabilizer ▪ Low power Push-the-Bit Fully Rotating ▪ R&M cost/time; ▪ Scalability; ▪ Low complexity; ▪ Hole cleaning; ▪ Low power (mud) ▪ Soft formation DLS ▪ High power (oil)

D-Tech Push-the-Bit Land RSS Platform Control Collar Slick collar – no holes Inline/sleeve stabilizer Power Generation Low power generator “Unlimited” run life / no batteries Downlinking (flow rate) Steering Body Maximize torsional strength Six pistons – maximum steering force, hydraulically optimized Mud-actuated with internal seals Universal Control Unit Plug & play – global compatibility Fully scalable Centrally mounted electronics Short R&M cycle Near bit D&I Automation – inclination & azimuth hold Control Valve Low inertia for fast response LCM tolerant filter assembly

Pre-Job Planning & Execution – 24-hr Remote Monitoring RT remote monitoring & operations support – all active rigs in US land Operating parameters evaluation Maximize drilling performance & wellbore placement accuracy Streamline internal communication Support unmanned drilling operations BHA & hydraulics optimization Enable performance drilling RT remote monitoring & operations support – all active rigs in US Land Operating parameters evaluation in real time Maximize drilling performance & wellbore placement accuracy Streamline internal communication Support unmanned drilling operations Assist with troubleshooting Provide advice on steering mode BHA & Hydraulics optimization Enable performance drilling

D-Tech Rotary Steerable Drilling History 1,287 3,759,705’

D-Tech Commercial Reliability & Engineering/Sustaining Focus on product performance, predictability & reliability Learn from incidents: Post-run analysis of all “incidents” Determine root cause Root cause used to drive “fit-for-purpose” changes: Procedures | Design | Material | Equipment Learn from successes: Replicating success Drilling parameter optimization BHA Design (motor selection, MWD placement, stabilization) Pre-, mid-, & post-run data analytics & communication

North America Land – Current Market Challenges Lack of durable, reliable & economical slim-hole RSS 7 7/8-in. market increase – need for built-for-purpose solution Harsh drilling environment in extended laterals Torsional vibration High lateral vibration/shock, whirl coupled with torsional episodes Market focus on cash flow & ROI RSS Technology must: … be predictable & reliable … improve well delivery (drilling & completions) … reduce overall drilling costs Lack of durable, reliable & economical slimhole RSS 7-7/8” market increase – need for built-for-purpose solution Desire for VCL products in several basins Harsh drilling environment in extended laterals Torsional vibration (stick-slip, HFTO) High lateral vibration/shock, whirl coupled with torsional episodes Market focus on cash flow & ROI RSS Technology must… …be predictable& reliable …improve well delivery (drilling & completions) …reduce overall drilling costs

D-Tech RSS Enhancements (2018-2019) D-Tech RSS fully re-engineered: Steering body design Torsional fatigue tolerance Hydraulics optimization prevents erosion (high RPM, heavy muds, poor solids control, LCM) Long-life pistons (proprietary diamond armor for abrasive formations) New slim-hole RSS (RST475) Intermediate sizes (RST650, RST800) D-Tech RSS fully re-engineered – addressing key issues of previous generation New Steering Body Design Eliminate torsional fatigue risks under HFTO & high levels of stick slip 6-pocket vs 3-pocket design Re-positioned flow channels to eliminate stress raisers Re-designed piston sleeve retention to prevent stress concentration Eliminate erosion risk at high rotary speeds, mud weights & high solids mud systems + eliminate toolface offset lag at high rotary speed Increased flow channel size Optimized piston diameter & choke nozzle size New control valve assembly with larger & re-positioned flow channels Prevent accelerated piston wear in abrasive formations New proprietary piston armoring outlasts even longest run length in US land New piston limit-stops with tighter tolerance & larger footprint

D-Tech RSS Enhancements (2018-2019), cntd. New control unit design Shock & vibration resistance (shock mounts, PCB redundancy) Material selection & component tolerancing (wear prevention) LCM tolerance (new, proprietary filter design) New feature addition (high speed, high torque) Optional RT communication New Control Unit Design Shock & vibration tolerance New Rotary Valve retention system prevents valve locking Revised motor drive shaft – reduced torque demand & prevents galling Revised PCB design to increase shock & vibration resistance with new components & board redundancy Revised motor assembly procedures with improved tolerances Board redundancy features Chassis Protection System – CU Chassis stabilization/reduced vibration damage New real time clock Battery for ruggedization in high vibration environments and longer run life Design and assembly procedure changes for internal power connection – improved connector durability/life Prevent galling, fretting wear & hydrostatic pressure limitation New material selection eliminates unintentional connection Increased make up torque of internal components New pressure housing material prevents housing from collapsing at high pressures New control shaft design & bearing support LCM tolerance increase New, proprietary internal filter design provides unmatched LCM tolerance for wide range of LCM Flow port & choke size optimization

D-Tech RST Enhancements (2018-2019), cntd.-2 Enhanced power generation module Increase service life Downhole & surface software revision Downlink reliability & wellbore placement accuracy enhancements Customer support Enhanced communication & operations support 24-hr remote support BHA modeling, design review & performance optimization Post-run data analysis & performance report Quality system upgrade Revised product & operations documentation Enhanced Power Generation Module Increase service life New sealing configuration Materials upgrades increased pressure rating Bearing selection & retention improvements increase load rating Rotor tolerance changes improve efficiently & lubricant flow New pressure compensation system & increased oil volume RST Software revision Downlink reliability & wellbore placement accuracy enhancements Revised steering table False downlink identification Control loop coefficient enhancements Customer Support Enhanced communication & operations support 24-hr remote operations monitoring & customer support BHA modeling, design review & performance optimization Comprehensive post-run data analysis & performance report Quality system upgrades Enhanced product & operations documentation

Summary - D-Tech Rotary Steerable – Redefining RSS Land RSS market has specific requirements – Requires built-for-purpose solutions Requirements constantly evolving – Pushing technology envelope D-Tech RSS – Field-proven, push-the-bit system addressing global land market needs Fully scalable & available fleet for all hole sizes Reduced complexity maximizes performance, reliability Shortest R&M cycle in industry Continuous enhancements & developments to meet operational requirements D-Tech – A technology provider & performance enabler with unmatched collaborative support D-Tech RSS – A field-proven push-the-bit RSS for the most challenging directional, horizontal and tight-tolerance vertical wells in the global land drilling market D-Tech is a technology provider & performance enabler that puts the customer in control while providing unmatched collaborative support during planning & execution Reduced complexity maximizes performance, reliability & reduces maintenance headaches with a scalable & available fleet covering all hole size needs Continuous enhancements & developments enable the D-Tech RSS to meet ever increasing operational requirements & continues to exceed customer expectations

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