UNSPSC 81101900: Oil and gas engineering

UNSPSC 81101900 Oil and gas engineering is a Class code that encompasses architect-engineer and A-E-related professional services for energy infrastructure, renewable energy assessment, and facility engineering support. State and local governments soliciting under this code are procuring preliminary design and feasibility studies for renewable energy systems, materials testing and inspection services for airport and municipal facilities, general engineering consulting for energy and utility infrastructure, and design support for mechanical, electrical, power generation, and related building systems. The County of Orange, California dominates recent activity, issuing multiple RFQs for qualified vendor lists across architect-engineer disciplines including power generation and distribution engineering, flood control engineering, materials testing, mechanical and plumbing design support, and cost estimating services—all structured as task-order contracts with time-and-materials compensation and three-year terms. Beyond Orange County, procurement activity spans state departments of transportation (Georgia), city engineering departments (Madison, Union City, Rome, Griffin, Nicholls, and Social Circle in Georgia; Fort Worth, Texas; and Albuquerque, New Mexico), county engineering offices (Chatham County, Georgia; Rockland County, New York; DeKalb County, Georgia), and airport authorities, with a secondary stream of fuel site services and fleet fueling infrastructure procurements that sit at the periphery of this code's nominal scope.

Recent opportunities cluster in California, Georgia, and other Sun Belt jurisdictions. Representative procurements include the County of Orange Power Generation, Distribution Engineering & Commissioning Services RFQ (posted August 11, 2026; responses due July 3, 2026) seeking pre-qualified A-E firms for cogeneration systems, microgrids, battery storage, photovoltaic systems, and EV charging infrastructure across county facilities on a task-order basis; the County of Orange Prima Deshecha Landfill Renewable Energy Preliminary Design RFP (posted July 1, 2026; proposals due July 1, 2026) for feasibility assessment and preliminary design of a renewable energy facility supporting landfill gas utilization with a target operational date of end of 2030; and the Georgia Department of Transportation General Engineering Consulting and Owner's Verification Firm services for the I-75 South Express Lanes project (posted June 24, 2026; SOQs due August 24, 2026) spanning environmental, design, traffic, geotechnical, utility, and construction engineering across a multi-phase P3 corridor project. Evaluation on these procurements heavily weights qualifications and experience (typically 30–40%), key personnel (15–25%), and availability to perform services (20–30%), with responses limited to 25–35 single-sided pages for SOQs. Most awards are structured as three-year multiple-award contracts with no guaranteed minimum work volume, hourly time-and-materials compensation, and prevailing wage compliance where applicable. California prevailing wage and federal Davis-Bacon wage requirements appear consistently in energy and transportation-related work. A secondary tier of fuel-site services and fleet fueling procurement appears in the recent opportunities block but represents a mismatch with the code's oil and gas engineering scope and should be screened separately.