Ineos Americas Llc

Sr. Reservoir Engineer (US Gulf)

Ineos Americas Llc • $150K — $180K *
Energy & Utilities
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in Petroleum or Reservoir Engineering
  • 10+ years of deepwater Gulf of America experience
  • Proficient in reservoir engineering analytical and simulation tools
  • Strong project management skills with a proven track record
  • Excellent communication and presentation skills in high-stakes environments

Responsibilities

  • Provide reservoir engineering support for producing assets and new projects
  • Design reservoir evaluation programs for exploration and appraisal activities
  • Develop and maintain reservoir simulation models and forecasts
  • Monitor well and asset performance, analyzing trends and recommending actions
  • Collaborate with cross-functional teams to align technical evaluations with business objectives
  • Support technical assurance and decision-making through performance assessments
  • Build relationships with operators and partners, serving as a key technical advisor

Benefits

  • Opportunity to work on high-impact projects in deepwater environments
  • Collaborative work culture with cross-functional teams
  • Access to advanced reservoir engineering tools and methodologies
  • Professional development opportunities in a fast-paced environment
  • Potential for innovative contributions to maximize asset value
Full Job Description

Summary of Position: Senior Reservoir Engineer

We are seeking a reservoir engineering technical specialist to provide and execute the reservoir engineering interpretations, work plans and models used in the subsurface analysis of our assets. The ideal candidate will bring 10+ years of reservoir engineering experience in deepwater Gulf of America.  The candidate must have demonstrated reservoir engineering experience supporting deepwater field development, infill drilling evaluation, production performance management, reserves assessment and economic analysis.

Primary Job Responsibilities

  • Provide reservoir engineering support across producing assets, developments, and new projects, including reservoir surveillance, pressure transient analysis (PTA), reservoir simulation, history matching, production optimization, forecasting, and reserves evaluation.
  • Design and support reservoir evaluation programs for exploration and appraisal activities, including log, fluid, and core analysis.
  • Develop and maintain reservoir simulation models, generate probabilistic production forecasts and reserve estimates, and provide modeling inputs to reserves reporting, AOPs, strategic planning, and economic evaluations.
  • Monitor well, reservoir and asset performance, analyze production and injection trends, identify root causes of variances, and recommend actions to improve outcomes.
  • Collaborate with geoscience, production engineering, drilling, commercial, regulatory, and partner teams to align technical evaluations with business objectives and development plans.
  • Support technical assurance, portfolio management, and decision-making by assessing performance against forecasts and reserves, documenting changes, and evaluating development opportunities.
  • Build strong relationships with operators and partners, serving as a key technical advisor and providing experience-based recommendations to enhance asset value.
  • Prepare clear technical reports and presentations, promote high-quality data and efficient workflows, and identify process improvements and innovative strategies to maximize reservoir performance and value.

Education & Experience:

  • Bachelor of Science degree in Petroleum Engineering or Reservoir Engineering Minimum of 10 years’ deepwater Gulf of America experience in the oil and gas industry, both in operated and non-operated assets. Thoroughly proficient in all reservoir engineering analytical and simulation tools and methods, such as well test analysis, wellbore, network and reservoir modelling, reservoir simulations, PVT analysis, production forecasting and reserves evaluation. Ability to write technical reports and correspondence and to effectively present information Proven project management skills, with a solid track record of developing pragmatic, technically sound, and commercially relevant recommendations. Able to structure work around deadlines, compliance requirements, project milestones Ability to work on multiple projects simultaneously in a fast-paced environment. Proactive, problem-solving individual Strong collaborator able to build trust with operators, partners, operations, asset teams, and technical specialists. Excellent communication and presentation skills, especially in high-stakes environments involving executive leadership and joint venture partners.

About Ineos Americas Llc

INEOS is a global manufacturer of petrochemicals, specialty chemicals and oil products. The company was formed in 1998 and is headquartered in London, UK. INEOS Americas LLC is a subsidiary of INEOS and is headquartered in Houston, Texas. INEOS Americas LLC produces a range of petrochemicals, including ethylene, propylene, butadiene, and benzene, which are used in a variety of applications, including plastics, synthetic rubber, and solvents. The company also produces a range of specialty chemicals, including phenol, acetone, and cumene, which are used in the production of resins, coatings, and adhesives.
Learn more about Ineos Americas Llc
Size
2,500 employees
Industry

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