Senior/Staff Reservoir Engineer – Williston & Rockies OBO

Conoco Phillips

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Who We Are

We are one of the world’s largest independent exploration and production companies, based on proved reserves and production of liquids and natural gas. With operations and activities in 13 countries, we explore for, develop, and produce crude oil and natural gas globally. We are challenged with an important job to safely find and deliver energy to the world. Our employees are critical to our success, and with them we power civilization.

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We strive to make a significant difference in the communities where we live and operate. We create an inclusive environment that values all voices and opinions. Together, the different backgrounds, experiences, ideas, and perspectives of our employees drive our success.

Job Summary


The Williston & Rockies Partner Operated Asset team is seeking a Senior Reservoir Engineer with a background in business development, portfolio planning, unconventional reservoir performance forecasting and reserves estimation. If you are selected as a Senior Reservoir Engineer, you will be a key contributor to assembling, executing and influencing the plan of development for a highly mature and low cost of supply asset in ConocoPhillips’ Lower 48 portfolio.

Job Description

Responsibilities may include:

  • Leading business development initiatives including acquisition and divestiture (A&D) opportunity screening, acreage trades and wellbore sales to optimize the OBO portfolio
  • Leading inventory & type curve characterization for undeveloped non-operated acreage and influence partners on optimizing development plans
  • Supporting competitor benchmarking and standard process knowledge sharing on well execution, operating costs and partner plan of development
  • Supporting Business Planning and Finance functions with all business outlooks, budget forecasting and Long Range Planning (LRP)
  • Leading reserves and resource estimation in alignment with SEC and corporate ConocoPhillips’ guidelines


  • Must be legally authorized to work in the United States on a full-time basis for anyone other than current employer
  • Bachelor’s degree or higher in Engineering or foreign equivalent
  • 5+ years of experience as a Reservoir Engineer


  • 3+ years of experience with unconventional reservoirs
  • Experience with evaluating acquisitions & divestitures, acreage trades and wellbore sales
  • Experience with production and pressure transient analysis tools
  • Proficient understanding of decline curve analysis techniques and fluid flow regime classification
  • Experience leading technical and economic analysis of partner ballots/AFEs
  • Excellent communication and interpersonal skills, and the ability to work optimally within multi-functional teams supporting concurrent projects
  • Demonstrates initiative and ability to work with limited supervision
  • Builds positive relationships based on trust and seeks collaboration across organizational boundaries to achieve goals
  • Takes ownership of actions and follows through on commitments by holding others accountable and standing up for what is right
  • Delivers positive results through realistic planning to accomplish goals
  • Builds effective solutions based on available information and makes timely decisions that are safe and ethical

Apply Before: January 20, 2024


ConocoPhillips’ sponsorship for employment authorization in the U.S. is NOT available for this position.


In the US, ConocoPhillips is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, national origin, age, disability, veteran status, gender identity or expression, genetic information, or any other legally protected status.

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