UNSPSC 71121511: Mud logging services

Services for the analysis of materials brought to the surface during the drilling of an oil or gas well, and the analysis of certain mechanical and fluid parameters relating to the drilling process.

UNSPSC 71121511 Mud logging services (Commodity) does not map to the work state and local governments are actually soliciting under this code. The recent opportunities block contains no mud logging contracts; instead, it documents well drilling, plugging, abandonment, repair, and maintenance services across water, wastewater, and orphan oil and gas well contexts. The code's abstract name—drawn from oil and gas exploration support services—bears no relationship to the concrete scope of work appearing in current state and local RFPs, RFQs, IFBs, and ITBs. Water utilities, county departments, state environmental agencies, and municipal parks departments are procuring well construction, rehabilitation, replacement, video inspection, casing repair, pump maintenance, site restoration, and regulatory compliance services, none of which fall within the mud logging taxonomy. The mismatch suggests either a cataloging error at the source or that this code is not actively used by state and local procurement offices for the work they are buying.

Geographic spread across recent opportunities spans Florida (Escambia County, Hillsborough County, Sarasota County, City of Ocala), Michigan (EGLE orphan well projects in Kent and Gratiot Counties), Georgia (City of Albany, City of Reynolds, City of Wrens), Mississippi (State Board, City of Pascagoula, Hilldale Water District), Texas (City of Austin, Texas Parks and Wildlife, UTSA, City of Lubbock), Illinois (Department of Corrections, Department of Natural Resources), Colorado (Boulder County), Oregon (Parks and Recreation Department), and South Carolina (Gwinnett County). Representative recent solicitations include the City of Albany's sealed-bid well rehabilitation and upgrade (Bid Ref. 27-032, due November 16, 2026), the Mississippi Oil and Gas Board's IFB for orphan well plugging covering nine wells in Jasper and Jones Counties (bids due December 18, 2026, mandatory pre-bid October 22), and Michigan EGLE's prequalified-vendor RFP for oil and gas well plugging and site restoration services (five-year prequalification awarded October 12, 2026, to five contractors totaling $800,000). No relevant activity supports the mud logging code's stated scope.