Controller
Westlawn — Houston, TX
Company Summary
Westlawn is a private investment firm based in Houston, TX focused on long-term investment in the global oil and gas industry. We acquire operated and non-operated interests in producing, development, and exploration assets, as well as technologies that improve production. Our portfolio spans multiple legal entities and jurisdictions across the Americas and beyond.
Position Summary
We are seeking a Controller to lead the accounting function across our multi-entity, multi-jurisdiction oil & gas portfolio. This role owns an accurate and on-time close, the integrity and control of accounting data, financial reporting under both US GAAP and IFRS, the external audit, and payment and cash-disbursement controls. The role also drives modernization of the accounting organization through systems optimization and AI-enabled workflows. The ideal candidate pairs a CPA and Big 4 foundation with upstream oil & gas depth, strong technical and systems ability (Quorum ODA, advanced Excel, AI/automation), and experience operating across international entities and currencies.
Key Responsibilities
Close, Data Integrity & Controls
Own the close schedule and deliver it accurately and on time, with a focus on making improvements
Control the integrity, completeness, and accuracy of accounting data across all entities
Own the general ledger, consolidations, and account reconciliations across the multi-entity structure
Partner with the NMS corporate team to perform all required cost reimbursements and intercompany entries
Maintain and strengthen internal controls, accounting policies, and close discipline
Liaise with Treasury to ensure payment and cash-disbursement controls — banking-instruction integrity, preparer/approver segregation, and disbursement approval workflow
Audit
Serve as primary liaison for external auditors and manage the annual audit across jurisdictions
Financial Reporting
Own financial reporting — deliver timely, accurate financial statements under US GAAP (US entities) and IFRS (Brazil, Peru, and Oman)
Oil & Gas Accounting (primarily non-operated)
Provide leadership to the team and technical oversight of revenue and joint-venture accounting, ensuring it is consistently applied
Provide team leadership and support for non-operated revenue accounting from operator statements — working-interest, royalty, and ORRI revenue, and severance/production taxes
Oversee the team that reviews incoming joint interest billings (JIBs) against JOA and COPAS terms and reconciles operator joint-account statements, cash calls, prepayments, and suspense — ensuring improper or non-chargeable costs are identified and resolved
Oversee DD&A, depletion, ARO, and impairment at the entity level based on Westlawn’s net interest in reserves and costs
Review lease operating statements (LOS) and field-level cost reporting for reasonableness and cost control
International
Manage accounting for international entities, including multi-currency (FX) transactions, remeasurement/translation, and intercompany activity
Support the foreign team as they perform statutory and local reporting requirements, and coordinate with local advisors as necessary
Systems & Technology
Optimize the company’s oil & gas accounting platform, Quorum ODA — including integrations, upgrades, and data integrity
Manage and perform monthly data transfers from the foreign accounting systems into Quorum ODA
Lead or support system implementations, conversions, and process automation initiatives
Champion the adoption of AI and agentic workflows across the accounting function — close automation, reconciliation agents, reporting, and exception handling — and evaluate emerging tools for practical deployment
Build and maintain advanced Excel models supporting reconciliation, cash flow, and financial reporting
Leadership
Lead, develop, and mentor the accounting team (currently 5 FTE)
Partner with operations, treasury, and finance leadership on budgeting,…