Demo

Reservoir Engineer

Diamondback E&P LLC
Midland, TX Full Time
POSTED ON 11/5/2025 CLOSED ON 1/5/2026

What are the responsibilities and job description for the Reservoir Engineer position at Diamondback E&P LLC?

CURRENT EMPLOYEES - Please apply using "Jobs Hub" in Workday. This career site is for external applicants only. This Reservoir Engineer will be an integral member of the Subsurface Injection Team and will work in a collaborative environment with geoscience, reservoir, production, completions, and midstream teams to provide engineering support for disposal reservoir interpretation, planning decisions, and forecasting. The Reservoir Engineer will integrate geological and pressure modeling to build tools and workflows to be predictive of the subsurface response to production, completions, and disposal operations. Job Responsibilities: Include but are not limited to: Provide engineering support and collaborate with Diamondback’s operations teams (completions, drilling, production, and planning) and midstream partners Manage all reservoir testing and data analysis for disposal zones in collaboration with Diamondback’s midstream partners (pulse tests, SRT’s, fall off tests, RTA/PTA) and lead regional trend evaluation and analysis Interface with the corporate planning and asset teams to refine produced water forecasted volumes using analytical tools, as well as collaborate with asset teams on investigative projects focused on WOR trends and performance drivers Develop and manage reservoir surveillance tools to monitor disposal well capacity and communicate forecasts to planning and corporate risk teams Develop recommendations for disposal zone development plans that are supported by data and economic analysis, and communicate the status of current asset capacity to midstream partners Support and collaborate heavily with regulatory group on SWD permitting and operational best practices Build models to understand ideal spacing between SWD wells and well design Collaborate in data management and interpretation of volume and pressure trends in completions and injection data, as well as develop recommendations and justifications for data acquisition programs Assist in developing recommendations critical to the asset geology and reservoir teams for ongoing development plans Required Qualifications: B.S. in Petroleum Engineering discipline A minimum of three (3) years of experience working as a reservoir, completions, or production engineer Experience building and maintaining Spotfire dashboards Experience working or knowledge of surface operations including but not limited to pumps, tank batteries, and pumping routes Experience working or knowledge of downhole operations including but not limited to workovers, common failure mechanisms and well completions Experience working with a variety of data streams and software Ability to communicate and apply conversations to practical problems Proactively and regularly communicate with teammates and associated key players across disciplines as to status updates and progress on projects Strong ability to resource and seek guidance for tasks outside of Geoscience and Reservoir Engineering disciplines Ability to work flexible hours, and occasional weekends and holidays Preferred Qualifications: Permian Basin experience or prior experience as a Reservoir, Completions, Production or Midstream Engineer. Familiarity with well test design and data acquisition and interpretation, as well as RTA/PTA concepts and practice Openness and/or exposure to geophysical science, geoscience and subsurface injection systems Familiarity with modeling or forecasting software Diamondback is an Equal Employment Opportunity Employer. Diamondback provides equal employment opportunities to all qualified applicants without regard to race, sex, sexual orientation, gender identity, national origin, color, age, religion, veteran or disability status, genetic information, pregnancy, or any other status protected by law. Diamondback participates in E-Verify. Learn more about E-Verify. Diamondback Energy is an independent oil and natural gas company headquartered in Midland, Texas focused on the acquisition, development, exploration, and exploitation of unconventional, onshore oil and natural gas reserves in the Permian Basin in West Texas. Important Notice: Protect Yourself from Recruiting Scams At Diamondback Energy, we are committed to providing a secure and transparent recruitment process. Unfortunately, there have been reports of fraudulent individuals posing as our recruiters in an attempt to deceive job seekers by postings on third-party websites. Please be cautious of the following: Job Postings and Official Communications: All legitimate job postings are listed on the “Careers” page of our website https://diamondbackenergy.com/careers and all communications from our recruitment team will come from an official Diamondback Energy email address, @diamondbackenergy.com. No Upfront Payments: We will never ask candidates to pay any money for job applications, interviews, or other related expenses. Interviews: All interviews will be conducted through recognized platforms, either via video call or in person. We will not request personal information over the phone or through unofficial channels. Job Offers: Official job offers from Diamondback Energy will be made through a formal offer letter via the candidate’s personal Workday candidate account and will not require immediate actions, such as payment or sharing sensitive personal information. If you believe you have encountered a scam or suspicious activity related to Diamondback Energy, please report it immediately to our HR department at hr@diamondbackenergy. In addition, you may file a complaint with the appropriate authorities: Federal Trade Commission at https://reportfraud.ftc.gov/ FBI Internet Crime Complaint Center at https://ic3.gov Always verify any information you receive through our official channels.
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Salary.com Estimation for Reservoir Engineer in Midland, TX
$123,161 to $146,087
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