UNSPSC 71151303: Oilfield decline analysis

Services using decline analysis to estimate reserves and predict production using either curve fitting and type curve matching methods.

UNSPSC 71151303 Oilfield decline analysis is a Commodity code that does not reflect the work state and local governments are actually buying under this classification. The recent opportunities tagged with this code encompass landfill gas collection and control system construction, irrigation system improvements, digester gas utilization project development, and executive search services—none of which align with oilfield decline analysis or oil and gas extraction decline assessment work. The mismatch between the code's nominal scope and the solicitations it has drawn suggests either a systematic tagging error in the state and local procurement system or that this code is being applied to energy-recovery and infrastructure projects that fall outside traditional oilfield operations.

The most substantive recent opportunity is the Eastern Municipal Water District's Digester Gas Utilization Project RFP (posted Feb 24, 2026, due Apr 14, 2026), a long-term Design-Build-Finance-Own-Operate-Maintain agreement at three California Regional Water Reclamation Facilities, which involves converting digester gas to renewable natural gas or energy products. Other recent solicitations include the Dalton-Whitfield Solid Waste Authority's landfill gas collection and control system ITB in Georgia (due May 21, 2026), the City of DeBary irrigation improvements ITB in Florida (due Apr 10, 2015), and the City of College Park executive search services RFP in Georgia (due Feb 18, 2026). Given the divergence between code scope and actual procurement activity, this code shows little relevant recent activity for firms focused on traditional oilfield operations or decline curve analysis.