UNSPSC 71121115: Milling through coiled tubing services

The use of a mill or similar downhole tool to cut and remove material from equipment or tools located in the wellbore through coiled tubing..

UNSPSC 71121115 Milling through coiled tubing services is a Commodity code that describes well plugging, abandonment, and site restoration services for orphan oil and gas wells—the core work state and local governments are buying under this classification right now. Recent solicitations across the dataset show state environmental departments and county authorities procuring comprehensive well plugging campaigns that pair mechanical abandonment (plugging and drilling operations) with site remediation, heavy equipment deployment, and infrastructure removal. The Michigan Department of Environment, Great Lakes, and Energy has dominated recent activity, posting four separate direct solicitations in July 2026 covering 38 total orphan wells across Gratiot and Montcalm counties under prequalified vendor lists tied to prior RFPs. Work scope includes well casing and tubing rental, wireline services, mud engineering, cementing, laborer crews across multiple classifications, site preparation, and complete lot restoration—all under Davis-Bacon prevailing wage requirements with firm pricing locked for project duration. A handful of additional orphan well plugging solicitations from Mississippi (both the Oil and Gas Board and state agencies) and Texas (Railroad Commission) illustrate that this code sees use when state fossil fuel oversight bodies manage environmental remediation of abandoned wells, typically federally funded through Infrastructure Investment and Jobs Act grants.

Geographic activity concentrates heavily in Michigan (Gratiot County especially), Mississippi, and Texas, with sporadic work in smaller jurisdictions across the Midwest and South. The Michigan solicitations—IFB DS7612600000000322 (three wells due July 21, 2026), DS7612600000000332 (14 wells due July 21), DS7612600000000352 (9 wells due July 21), and DS7612600000000342 (12 wells due July 21)—represent the highest-value recent cluster and require prior RFP prequalification plus mandatory pre-proposal meeting attendance. Evaluation is heavily weighted to technical factors (key personnel, business-owned equipment, company experience, and vendor questions each at 25 points) with an 80-point minimum threshold for award consideration and best-value selection rather than lowest price. The Mississippi Oil and Gas Board has issued at least three IFBs for orphan well plugging across multiple counties (Adams, Clarke, Hinds, Jefferson Davis, Issaquena, Madison, and Yazoo), all funded through IIJA Formula grants administered by the Department of Interior, with responses due in March through May 2026. The Railroad Commission of Texas solicited statewide well plugging qualifications covering seven service categories including routine and deep plugging, federally funded work, environmentally sensitive locations, emergency response, and freshwater protection—with strong HUB and disadvantaged veteran-owned business emphasis reflecting Texas procurement set-asides. Prequalification is a consistent barrier to entry across these opportunities; Michigan requires prior RFP awards, Mississippi and Texas require trade reference verification and five-plus years of documented experience, and all impose stringent insurance and bonding requirements ($1 million to $4 million in pollution liability and general liability). None of the recent solicitations disclose estimated award values or total contract budgets in the source material.