UNSPSC 71121629: Underbalanced well drilling services

Services to minimize formation damage by using one of the following techniques (1) lightweight drilling fluids, (2) gas injection down the drill pipe, (3) gas injection through a parasite string, and (4) foam injection; can include the use air, nitrogen.

UNSPSC 71121629 Underbalanced well drilling services (Commodity) encompasses drilling, plugging, and site restoration for orphan oil and gas wells, with state and local governments procuring comprehensive well abandonment and remediation as environmental cleanup and infrastructure stewardship obligations. The code captures the full scope of work state and local agencies solicit: plugging operations, equipment removal, site preparation and restoration, waste disposal, environmental compliance, and associated labor across multiple equipment configurations. Recent state-level activity centers on orphaned well programs funded through federal infrastructure grants, with Michigan's Department of Environment, Great Lakes, and Energy posting four concurrent direct solicitations in July 2026 for plugging and site restoration at 38 orphan gas storage wells in Gratiot and Montcalm counties operated by New Haven Energy LLC. These solicitations (DS 260000000032 through DS 260000000035, proposals due July 21, 2026) require unit pricing matrices covering 68 line items including supervisor and laborer hours, rig services across pole and derrick configurations, casing and tubing rental, cementing services, mud engineering, wireline services, waste disposal, and heavy equipment operations. Davis-Bacon prevailing wage requirements apply, with conformed rates ranging from $39.57 to $41.32 per hour plus fringe benefits of $25.25 to $40.00. Bidders must be prequalified through prior RFPs, attend mandatory pre-proposal meetings, submit detailed project timelines segmented by Site Prep, Mobilization/Demobilization, Plugging, and Site Restoration, and meet an 80-point technical evaluation threshold across Key Personnel, Business-Owned Equipment List, Technical Experience and Ability, and Vendor Questions Worksheet (each 25 points). Award is based on best value, not lowest price, with firm pricing required for the project duration.

Michigan dominates recent underbalanced well drilling activity, with four state direct solicitations posted within a single week in mid-July 2026 representing 38 wells across 26B total line items. The issuing body mix reflects state environmental remediation programs and orphaned well cleanup initiatives, particularly state departments of environmental quality or natural resources managing federal infrastructure grants. Geographic concentration in Michigan's Gratiot and Montcalm counties reflects focused remediation campaigns at specific well fields, though orphaned well plugging activity spans Texas (Railroad Commission RFQ for statewide well plugging), Mississippi (Oil and Gas Board IFBs for seven and three well sets in multiple counties), and Illinois (Department of Natural Resources well installation at Union County State Fish and Wildlife Area). Prequalification through prior competitive RFPs is a hard filter in Michigan solicitations, restricting bidding to contractors who have already demonstrated capacity and performance; this qualification gatekeeping significantly narrows the bidder pool and signals mature procurement discipline. The Michigan opportunities prioritize service-disabled veteran-owned business status consideration under state law, and prevailing wage compliance with federal Davis-Bacon funding creates cost floors that favor established, well-capitalized contractors with equipment inventories and experienced crews. No recent opportunities under this code show little relevant activity—activity is robust and concentrated in federally funded orphaned well remediation programs, with contract values reflecting significant mobilization, equipment, and disposal costs across multi-well campaigns.