Job Description

Assistant Driller

Date: Sep 13, 2026

Location: Mansfield, LA, US, 71052-4692

Company: Expand Energy

Our core values — Stewardship, Character, Collaborate, Learn, Disrupt — are the lens through which we evaluate every business decision. As a dynamic, growing company that offers extremely competitive compensation and benefits, our employees are our most valued assets and the foundation of Expands performance among our E&P competitors.

We seek applicants from all backgrounds to ensure we get the best, most creative talent on our team. We realize that, historically, underrepresented groups feel the need to be 100% qualified in order to apply. If you meet any combination of our requirements, we encourage you to apply. We strive to hire people from a wide variety of backgrounds, not just because it’s the right thing to do, but because it makes our company stronger.

Job Summary

The Assistant Driller operates and repairs drilling equipment. They maintain drilling rigs, vehicles, and safety equipment associated with the safe and efficient operation of a rig site.

Job Duties & Responsibilities

• Required to work day and night shifts, overtime, and weekends if necessary; responsible for responding to call-outs when needed.
• Provide routine maintenance such as valve repair, flow back iron repair, light plant repair, and miscellaneous repairs on oil and gas frac, flow back, and water transfer equipment.
• Provide labor and equipment for rig-up of oil and gas tank batteries, oil and gas flow back equipment, water transfer equipment, and artificial lift installations.
• Provide additional and/or replacement equipment when needed.
• Monitor the flow back water, tubing/casing pressures, test water samples for TDS and PH, and submit daily reports to production with limited supervision.
• Monitor and operate pumps, piping, and flow meters for water transfer process.
• Possess good communication/ computer skills in order to submit the production reports, communicate with LOC to remove flow back water, and communicate the well history to the production foremen.
• Analyze data and make any required adjustments in a timely manner
• Train for the duties and responsibilities of other Field Service Roustabout positions.
• Adhere to all Company Policies and all HS&E practices, policies, and procedures.

Job Specific Skills

• Strong problem solving and critical thinking skills
• Ability to follow oral or written instructions to complete assigned tasks with minimal supervision
• Ability to interact with others in a team environment
• Minimum training requirements: Health, Safety and Environment Orientation and Rig Specific Start Up Training, Well Control Certification, Supervisor Level, Drilling Only, and Horizontal and Extended Reach Drilling (HERDIT
• Basic/Intermediate computer skills, including the ability to

• Operate a computer, Omron Human Machine Interface (HMI) and Pason system

• Effective communication skills, including the ability to

• Exchange accurate information relating to technical and safety performance with vendors, engineering, employees, etc.
• Read, learn, and educate on safety and technical manuals

Education & Experience

Minimum: 3 - 5 years related experience

High school diploma, GED, or the equivalent is preferred

Additional Qualifications

Expand Energy takes necessary action to ensure that all applicants are treated without regard to their race, color, religion, sex, sexual orientation, age, gender identity, national origin, genetic information, disability, pregnancy, military or veteran status or any other protected characteristic as established by law.

Expand Energy Corporation's operations are focused on discovering and developing its large and geographically diverse resource base of unconventional oil and natural gas assets onshore in the United States.

Job Segment: Engineer, Engineering

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