Advisor - Environmental

Environmental Advisor

The Environmental Advisor will support MEPUSA's corporate and local operating teams by leading and maintaining environmental compliance programs for upstream oil and gas operations, with a focus on air, water, waste, remediation, emissions reporting, permitting, audit readiness, and environmental data quality. This position reports to the Director - HSE & Regulatory, is based in the Houston, TX office, and serves as a key environmental subject matter expert supporting Operations, senior leadership, Mitsui headquarters stakeholders, regulatory agencies, and business partners.

The role is responsible for environmental compliance, permitting, emissions reporting, audit readiness, remediation activities, and continuous improvement initiatives that support operational excellence and regulatory compliance.

MEPUSA is a growth-oriented upstream oil and gas company backed by Mitsui & Co., Ltd. The Environmental Advisor will have the opportunity to work across operated and non-operated assets while partnering with Operations, Accounting, senior leadership, regulatory agencies, and Mitsui headquarters stakeholders. This role offers broad exposure to environmental compliance, emissions management, regulatory strategy, audit readiness, sustainability initiatives, and cross-functional business operations within a collaborative and entrepreneurial environment.

• Lead and maintain environmental compliance programs for upstream oil and gas operations, including air, water, waste management, remediation, chemical storage, and other designated environmental programs.
• Lead emissions tracking, inventorying, calculations, reporting, and related data quality improvements to support monthly, quarterly, and annual reporting requirements.
• Identify opportunities to improve environmental performance, reporting efficiency, emissions management processes, data integrity, and regulatory compliance practices through technology, analytics, and process improvements.
• Lead preparation of air quality permits, emissions calculations, and dispersion modeling as needed for upstream facilities and operations.
• Manage outsourced LDAR, LiDAR, OGI leak survey, AVO, and related inspection programs, including oversight of contractor work and follow-up actions.
• Maintain working knowledge of applicable federal, state, and local environmental regulations, including Texas permitting, EPA, TCEQ, RRC, CERCLA, RCRA, USFWS, USACE, OOOOa/OOOOb, GHG, SPCC, storm water, and waste-related requirements.
• Advise Operations and asset teams on environmental compliance obligations, permitting requirements, emission control options, facility design considerations, and air compliance documentation.
• Serve as the environmental subject matter expert by providing strategic guidance to Operations and leadership regarding compliance risks, regulatory developments, environmental performance improvement opportunities, and business impacts.
• Lead or support environmental site assessments, remediation projects, sampling activities, corrective action design, and site characterization efforts as needed.
• Support environmental due diligence activities associated with acquisitions, divestitures, and new business opportunities as needed.
• Support spill prevention, response, mitigation, remediation, agency notifications, reporting, and follow-up documentation.
• Support development and maintenance of site facility diagrams, site inventories, equipment records, and compliance documentation for air permitting, GHG, SPCC, storm water, waste, and related programs.
• Assume leadership of the current asset Responsibly Sourced Gas (RSG) program and support implementation for future assets.
• Coordinate with Operations, Accounting, contractors, and leadership to support environmental reporting, compliance filings, audit readiness, and strategic environmental initiatives.
• Support internal and agency inspections, audits, and related follow-up activities; help resolve compliance issues and assess/respond to violation notices as assigned.
• Lead audit readiness activities, including compliance reviews, documentation assessments, corrective action tracking, and environmental data validation efforts.
• Promote environmental awareness through recurring training and communication with field and office personnel on standard and emerging environmental matters.
• Attend industry trade group meetings and participate in regulatory efforts as appropriate.
• Prepare clear environmental compliance updates, audit readiness summaries, and reporting materials for senior leadership, HQ stakeholders, and cross-functional business partners as needed.
• Serve as MEPUSA's environmental subject matter expert by advising Operations and leadership on regulatory requirements, compliance risks, permitting strategies, and environmental best practices.
• Perform other duties as assigned to support HSE&R and environmental compliance needs.

• Strong working knowledge of upstream oil and…