Reservoir Engineer

J MAR & Associates; Fort Worth (TX); On-site; USD 120,000 - 190,000; Full time

Job summary

J MAR & Associates' client, a private oil and gas company, seeks an A&D Reservoir Engineer to evaluate acquisition, divestiture, and trade opportunities across the Lower 48. The engineer applies reservoir engineering, production analysis, and economics to gauge asset quality and shape investment recommendations.

Based in Fort Worth, TX, the role requires 3+ years in reservoir engineering, a BS in Petroleum Engineering, and experience with ComboCurve, ARIES, PHDWin, Enverus Prism, and IHS Energy.

Qualifications

• BS in Petroleum Engineering or related field.
• 3+ years in a reservoir engineering role at an operating company.
• Experience with reserves and economics software such as ComboCurve, ARIES, or PHDWin.
• Experience with Enverus Prism and IHS Energy data subscriptions.
• Strong written, verbal, and presentation skills.

Responsibilities

• Deal Evaluation & Opportunity Screening with the A&D team for acquisition, divestiture, and trade opportunities across deal timelines.
• Track industry trends and competitor data to surface opportunities worth pursuing.
• Establish well EURs, spacing, development patterns, and build type curves aligned with corporate return metrics.
• Assess well results against geology, reservoir fluids, completion design, flowback, and artificial lift.
• Collaborate with geologic and operations staff to provide reservoir input on development and drilling opportunities.
• Scrutinize LOS/LOE, OpEx, price differentials, CapEx, and remaining economic assumptions for scenarios.
• Support cross-functional teams (land, finance) and prepare materials for executives.

Skills

Reservoir engineering

Economic evaluation

Data analysis

Education

Bachelor of Science in Petroleum Engineering

Tools

ComboCurve

ARIES

PHDWin

Enverus Prism

IHS Energy

Job description

Highly Competitive Salary, Bonus, and Benefits Package

J MAR's client, a privately held oil and gas exploration and production company with an active acquisition and development program, is seeking an A&D Reservoir Engineer to help evaluate acquisition, divestiture, and trade opportunities across the Lower 48. Working inside a multi-disciplinary deal team, the engineer applies reservoir engineering, production analysis, and economic evaluation to gauge asset quality, quantify value, and shape the investment recommendations.

RESPONSIBILITIES

Deal Evaluation & Opportunity Screening

• Work alongside the A&D (acquisitions and divestitures) team to turn evaluations of acquisition, divestiture, and trade opportunities around on deal timelines, covering both proprietary and third‑party deal flow.
• Track competitor data, offset operator development strategies, and broader industry trends to surface opportunities worth pursuing.

Reserves, Type Curves & Well Performance

• Establish individual well EURs (estimated ultimate recoveries), well spacing, and development patterns. Select the relevant well analogs and build the type curves behind acquisition and development recommendations measured against corporate return metrics.
• Read well results against the specific geologic target, reservoir fluid, completion design, flowback behavior, and artificial lift method in play.
• Team with geologic and operations staff to supply reservoir engineering input on development projects and drilling opportunities.

Economics & Cross-Functional Support

• Scrutinize LOS/LOE (lease operating statement/lease operating expense), OpEx, price differentials, CapEx, and the remaining economic assumptions underpinning acquisition and development scenarios.
• Serve as a technical and economic resource to A&D, land, finance, and other cross‑functional groups.
• Help assemble the material presented to the executive team.

REQUIREMENTS

• Bachelor of Science in Petroleum Engineering, or a related technical engineering discipline.
• Three or more years in a reservoir engineering role at an operating company.
• Experience with reserves and economics software such as ComboCurve, ARIES, or PHDWin is required.
• Working experience with Enverus (Prism) and IHS Energy data subscriptions.
• Clear written, verbal, and presentation skills, with the ability to communicate at every level of the organization.

ABOUT J MAR

Celebrating over 30 years of excellence in energy recruiting, J MAR & Associates is a trusted leader in talent acquisition. With a deep network and decades of industry insight, we specialize in connecting top professionals with outstanding opportunities. Learn more at jmarassociates.com/about.