✦ Luna Orbit — Engineering (Non-Software)

Sr. Staff Reservoir Engineer

at Southwestern Energy

📍 Oklahoma City, OK, US, 73118 Unknown Posted April 17, 2026
Type Full-Time
Experience senior
Exp. Years Not specified
Education Not specified
Category Engineering (Non-Software)

The Sr. Staff Reservoir Engineer serves as a team lead, performing detailed reservoir engineering work to provide technical solutions to reservoir challenges. The role evaluates production, well performance, stimulation and modification programs, and delivers reservoir characterization using advanced analytic methods.

  • Evaluate production capabilities and economic value of wells
  • Assess well modification and stimulation programs to maximize recovery
  • Provide reservoir performance monitoring and surveillance programs
  • Integrate nodal, pressure transient, material balance, and decline curve analyses
  • Conduct field/screening studies and exploration project evaluations with probabilistic analysis

This position emphasizes unconventional reservoir analysis for tight gas, CBM development, and shale gas work. Core technical methods include well performance/nodal analysis, pressure transient analysis, material balance, volumetric calculations, decline curve reserve determinations, and probabilistic evaluation techniques to support economic reserve assessment.

The ideal candidate is a senior reservoir engineer and technical lead with advanced experience in unconventional reservoirs, including tight gas, CBM development, and shale gas. They can integrate nodal/well performance, pressure transient, material balance, volumetric, and decline curve methods to deliver reservoir characterization and economic reserve evaluations while mentoring engineers.

Advanced knowledge of unconventional experience associated with tight gas reservoirsCBM developmentand shale gas resource workadvanced knowledge and ability to integrate well performance/nodal analysispressure transient analysismaterial balancevolumetric and decline curve analysesadvanced knowledge and practical application of volumetric calculationsdecline curve reserve determinationsanalogue techniques and material balance assessmentsexpertise in economic evaluation and reserve assessment
reservoir engineeringevaluates production capabilitieseconomic value of oil and gas wellseconomic viability of potential projectsmonitors and evaluates performance and completion design effectivenessevaluates well modification and stimulation programsanalyzes data for placement of wellsmonitors production rates and workover potentialprovides monitoring and surveillance programs for reservoir performancetrains and mentors engineersworks with geologists and engineersrecommends and analyzes test data for reservoir characterizationfield and screening studiesexploration project evaluationsprobabilistic analyseswell performance/nodal analysispressure transient analysismaterial balancevolumetric and decline curve analysesvolumetric calculationsdecline curve reserve determinationsanalogue techniquesmaterial balance assessmentseconomic evaluation and reserve assessment
reservoir engineeringevaluates production capabilitieseconomic value of oil and gas wellseconomic viability of potential projectsmonitors and evaluates performance and completion design effectivenesswell modification and stimulation programsmaximize oil and gas recoveryanalyzes dataplacement of wells and processes to enhance productionmonitors production ratesworkover potential to improve productionmonitoring and surveillance programs for reservoir performancecoordinates programs with management strategyreservoir characterizationrecommendsacquiresand analyzes test datafield and screening studies of existing assetsfield and screening studies of potential acquisitionseconomic analyses for assets and acquisitionsexploration project evaluationsprobabilistic analysesadvanced knowledge of unconventional experience associated with tight gas reservoirsCBM developmentand shale gas resource workwell performance/nodal analysispressure transient analysismaterial balancevolumetric calculationsdecline curve analysesreserve determinationsanalogue techniquesmaterial balance assessmentseconomic evaluation and reserve assessment for e
team leadmentors less experienced engineerstrains and mentorscross-functional collaboration with geologists and other engineerscommunicationproblem-solvingleadership
Industry Energy
Job Function Lead reservoir engineering evaluations to improve production performance and economic reserve outcomes for unconventional assets.
Role Subtype Reservoir Engineer
Sr. Staff Reservoir EngineerSenior Staff Reservoir Engineerreservoir engineerreservoir engineeringteam leadreservoir performancemonitoring and surveillance programsreservoir characterizationwell modification and stimulation programsworkover potentialwell performance/nodal analysispressure transient analysismaterial balancevolumetric calculationsdecline curve analysesdecline curve reserve determinationsanalogue techniqueseconomic evaluationreserve assessmentproduction capabilities and economic valueeconomic viability of potential projectsprobabilistic analysesfield and screening studiestight gas reservoirsCBM developmentshale gas resource workexploration project evaluationseconomic evaluation and reserve assessment

Must have advanced knowledge of unconventional reservoir experience (tight gas, CBM development, shale gas)

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