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For the benefit of its members, the COPAS website provides links to the websites of advertisers. In providing these links, COPAS does not endorse or recommend any products and services. COPAS makes no representation or warranty, whether statutory, expressed or implied with respect to advertiser's products or services, including but not limited to its condition, quality, fitness for a particular purpose, conformity to, or the merchantability of any advertised product or service. COPAS assumes no liability, whether expressed or implied, for any defect in advertiser's products or the advertiser's failure to adequately perform any services.

4A Energy Advisors LLC provides an experienced, COPAS knowledgeable staff for contract compliance reviews related to:

  • Capital Expenditures (drilling, completion, equipping, etc.)
  • Lease Operating Expenses
  • Vendors/Contractors with Special Emphasis on Land Brokers
  • Revenue/Production Settlements
  • Midstream Operations
  • International Joint Ventures
  • Litigation Support

AMS-PAR offers you a higher level of assurance. At AMS-PAR, our goal is to recover lost profits for your company and provide a unique insight into your contractual relationships. Through comprehensive examination of your company’s contracts, we help you assess whether your joint venture partners, suppliers, and contractors are in compliance with the terms of your agreements.

Whether you have investments in the deep gulf, onshore, or in producing basins around the world, the AMS-PAR team has the experience to evaluate whether billings, production allocations, and revenue distributions are properly made to joint venture partners and other interest owners. Our unique approach and use of advanced and proprietary technology enables us to interrogate data in new ways to help uncover more discrepancies by looking at the information differently. Our professional staff provide you the consistency and higher level of assurance that you deserve from a trusted adviser.

Gas Equities, Inc. (“GEI”) is an independent professional organization focusing on joint interest audits, revenue audits, consulting services, internal control reviews, accounting process reviews, out-sourced accounting functions and litigation support to our clients all over the world since 1991. Our clients consist of companies in every sector of the energy business, including oil and gas exploration and development companies, gas pipelines, gas plants, marketing and refining companies, local distribution companies, and trading and transportation companies. GEI has extensive experience in complicated contract compliance revenue audits relating to settlement for and allocations of hydrocarbons, including natural gas, natural gas liquids, LNG, and crude oil. Our experience with joint interest expense audits is extensive and our auditors are very knowledgeable of audit issues associated with drilling, completion, and lease operating expenses and the chargeability of costs according to the prevailing contracts. Based upon our vast experience, we are confident that we can assist you with your oil and gas auditing and accounting needs.

Martindale Consultants Employee-owned since 1982 with a combine 200+ years of experience, Martindale is THE specialty consulting company focused on contract compliance, litigation support, severance and ad valorem tax and regulatory reporting compliance, analysis, accounting, and special projects in the oil and gas industry.  Our strength is with our people. We cultivate a continuous learning environment paired with experienced leadership, resulting in long-term employees that are passionate about the work we do.  This produces outstanding client results and creates successful long-term relationships.  Our project managers provide a continuous point-of-contact with our clients and "cradle-to-grave" updates throughout our projects. We utlilize our employees to balance experience with youthful problem-solvers. Focus areas are:

Joint Venture Expense | Revenues | Royalty | Gas Plant | Payout | Deepwater | Vendor | Severance Taxes | Litigation Support | Special Projects | COPAS Consultation

OGC Consulting – Established in 1999, OGC Consulting covers the full spectrum of oil and gas contracting activities: negotiation, compliance, litigation support, joint ventures, contractors/vendors, gas processing and revenue. Whether you are an operator, non-operator, lawyer, or landman, OGC Consulting can help you and your firm.  Our over 30 affiliated professionals bring with them experience from across the globe and entire landscape of the Oil and Gas Industry.

Petroleum Comptroller Services, Inc. (PCS), and its predecessor firm have provided domestic and international joint venture and related review services since 1984.

Professional Development Institute (PDI) PDI's renowned Energy division delivers quality Continuing Professional Education to the energy business -- training that is on target, on site and on budget.  Each of our program authors/instructors is a "been there, done that" professional with outstanding industry knowledge coming from decades of industry experience.  All instructors have the skills to communicate, at any level, the material your employees need to be more effective.  Explore our array of programs covering Upstream and Midstream Fundamentals and Operations, Petroleum Accounting, Joint Interest, Expense Side, Revenue, Gas Balancing and Plant Accounting and Tax.  Contact Jim Hoffman at or 214-763-9644 for detailed information about any of our energy programs.

Red Dog Systems is dedicated to improving joint venture and owner relations business processes. Established in 2000 with offices in Calgary and Houston, Red Dog Systems is a privately held company that facilitates the exchange of data for the energy industry via cloud-based Electronic Data Interchange (EDI). EnergyLink, our signature solution, was developed to help our customers drive operational efficiencies and lower costs by optimizing key business processes. We are committed to evolving our product continually in order to deliver important workflow efficiencies and communication tools to operators, partners and owners. Our software solutions are developed by a team of industry veterans and IT professionals. Each of our cloud-based products allows our customers access 24/7/365 to the important data they need, anytime they need it. We value continuous improvement and believe our customers should be working smarter - not harder.

WolfePak Software is software for the Rest of us! Operator Suite with Payroll. Fully integrated scanning also available.