[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All APA jobs](https://jobs.opennash.com/companies/apa/) · [Search jobs](/search/) APA · Houston, TX # Petrophysicist II Houston, TX, USA Listed on APA’s official careers site. Listed as of October 18, 2026. Check that it is still open and apply there. [Apply on APA’s careers site →](https://careers.apachecorp.com/job/Petrophysicist-II/12860-en_US) [OpenNash Jobs](https://jobs.opennash.com/) / [APA](https://jobs.opennash.com/companies/apa/) / Petrophysicist II ## Job description ### Specific Responsibilities The Petrophysicist II is responsible for analyzing and interpreting petrophysical data to support oil and gas exploration, development, and production activities. Working as part of a multidisciplinary team, the Petrophysicist II integrates well logs, core, geological, geophysical, and production data to characterize reservoir properties and reduce subsurface uncertainty. The role supports reservoir characterization, development planning, well planning and execution, and appraisal activities. The Petrophysicist II develops increasingly independent technical capability while working with more experienced petrophysicists and other subject matter experts on complex interpretations and acquisition programs. They provide petrophysical inputs to reservoir models, volumetric assessments, and reservoir engineering workflows used to evaluate in-place volumes and development performance. ### Petrophysical Analysis Perform petrophysical analyses of conventional and unconventional reservoirs, integrating log, core, geological, and production data to characterize reservoir quality, fluid saturation, and other key reservoir properties. ### Permian Reservoir Characterization Support characterization of Permian unconventional reservoirs, including evaluation and correlation of reservoir intervals and landing zones to improve understanding of reservoir quality and lateral variability. ### Logging and Coring Programs Support the planning and execution of wireline, LWD, coring, and other formation-evaluation programs. Develop recommendations for fit-for-purpose data acquisition with guidance from senior petrophysicists or subject matter experts when appropriate. ### Well Planning and Operations Provide petrophysical input to well planning, target identification, drilling and completion activities, including timely interpretation of acquired data during well execution. ### Core and Log Integration Manage, interpret, QC, and integrate log and core data and communicate results to multidisciplinary teams. ### Development and Appraisal Provide petrophysical interpretations that support appraisal and development decisions, including understanding reservoir variability, reducing subsurface uncertainty, and incorporating learnings from new wells into subsequent development plans. ### Volumetrics and Reservoir Modeling Provide petrophysical inputs such as porosity, saturation, net reservoir and other reservoir properties for volumetric assessments, geomodels, reservoir engineering studies, and in-place estimates. ### Performance Integration Work with geology and reservoir engineering to compare petrophysical interpretations with well performance and incorporate learnings into future reservoir characterization. ### Cross-Functional Integration Work closely with geology, geophysics, reservoir engineering, geomechanics, drilling, completions, and operations teams to ensure petrophysical interpretations are appropriately incorporated into subsurface and development decisions. ### Skills Working knowledge of wireline and LWD logging tools and their applications. Proficiency in Interactive Petrophysics or comparable petrophysical interpretation software, with developing capability in advanced applications such as NMR, image logs, and saturation-height modeling. Working knowledge of open- and cased-hole log interpretation. Understanding of core acquisition, handling, preservation, and analysis techniques. Ability to integrate petrophysical, geological, geophysical, core, and production data. Working knowledge of geomechanical concepts relevant to drilling and completions. Ability to assess data quality, recognize uncertainty, and understand the limitations of petrophysical interpretations. Ability to clearly communicate technical interpretations and recommendations. Developing understanding of how petrophysical data acquisition and interpretation affect asset decisions and value. ### Qualifications & Experience The successful candidate will have the following qualifications and experience: BS in Geology, Geophysics, or Engineering, and relevant experience (MS preferred but not ## At a glance - Posted by the employer: Not stated - First seen by OpenNash: Oct 11, 2026 - Last checked: Oct 18, 2026 - Listed for: 7 days - Location: Houston, TX, USA[Apply on APA’s careers site →](https://careers.apachecorp.com/job/Petrophysicist-II/12860-en_US) ## More jobs at APA ### [Geologist Advisor](https://jobs.opennash.com/companies/apa/jobs/a67b6ab47bccb23ee7f3/) Houston, TX, USA ### [Organizational Development Analyst II](https://jobs.opennash.com/companies/apa/jobs/d390b4b8094ad7f7f200/) Houston, TX, USA ### [SCADA Applications Analyst Sr - CygNet](https://jobs.opennash.com/companies/apa/jobs/56e2e5ca399c604b8c7e/) Houston, TX, USA ### [Completions Engineer Sr - Permian](https://jobs.opennash.com/companies/apa/jobs/1fabf9ff048db3ac8648/) Houston, TX, USA ### [Compliance Analyst Sr](https://jobs.opennash.com/companies/apa/jobs/c99f35f18e6f789c21f6/) Houston, TX, USA OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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