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Vendor / Supplier

With the significant increases in production costs, it is increasingly important for companies to carefully monitor and control their contractual relationships. Most midstream and upstream companies have seen rapid growth in expenditures, but few are adding staff to track and control these increasing costs. As the spending grows, so does the need to have contracts analyzed for compliance with their terms and conditions. In today’s multi-million dollar contract environment, even small interpretational errors by a vendor can create large overpayments. Agreements that in the past were too small to warrant review are now substantial enough to receive attention.

For over 25 years, AMS-PAR has helped oil and gas companies monitor their contract costs. A comprehensive AMS-PAR vendor review program will determine the current level of contract compliance of key suppliers without adding additional burden to your staff. We will examine the agreements that are the basis for the commercial relationship, verify that the resulting invoice activity complies with the terms of the agreements, and confirm that payments made under the agreements are accurate. AMS-PAR will also assess compliance with your business ethics policy.

At the close of the engagement, we will provide a detailed report of the review. This report will include the findings of our team regarding overpayments and contractual misinterpretations that have acted to the detriment of our client. It will also incorporate specific recommendations to strengthen the contract oversight process with the objective of preventing recurrence of these errors in the future.

Types of compliance reviews include:

  • Material suppliers
  • Service suppliers
  • Drilling contractors
  • Construction contractors
  • Business ethics


AMS-PAR uses the latest in technology enabling our staff and partners to execute their tasks with the most efficiency possible. Our Information Systems and data are secured to meet governmental requirements. Recent changes to our technology stack includes virtualization of our servers and storage.


AMS-PAR professionals are among the most experienced in the business with an average of 25+ years in related fields. Each consultant has strong analytical skills and industry expertise. We seek out and retain those with demonstrated expertise and skills.

Our Difference

All potential service providers offer widely differing levels of scope and review intensity. At AMS-PAR we offer our clients a higher level of assurance through proper planning, execution, and reporting. We believe that the client is best served by customizing our review to meet its unique and distinct needs.


AMS-PAR services the needs of a diverse client base ranging from small independent firms to international conglomerates. Our well trained teams travel the globe to ensure our client’s interests are protected.