クレジットの発行元となる企業・団体・プロジェクトが実現した温室効果ガス排出削減量または吸収量を測定し、その信頼性・永続性・追加性等を独立した立場から検証しクレジットの質を保証する基準の名称（表示は略称）
クレジットの発行年度（認証基準の審査を通過し、当該クレジットの温室効果ガス排出削減量または吸収量を自社排出量に適応可能と定められた年度）
購入可能なオフセット量
15,000.00 トン
１トンあたりの価格（税込）
4,610円
The Tradewater OOG 1 project plugs orphaned, methane-emitting oil and gas wells in Indiana, United States. Orphaned wells — those abandoned without a responsible operator — are a persistent climate and public health problem. Without a responsible owner, these wells become a state responsibility with no mandate to remediate them, leaving them to emit methane unabated. The scale of the issue is significant: the U.S. Environmental Protection Agency (EPA) estimates that abandoned and orphaned oil and gas wells release 6.6 million metric tonnes of CO₂e annually across the United States. To find wells worth plugging, a Tradewater team of experts surveyed over 100 orphaned wells in Indiana, identifying a group with high surface pressure and elevated emission rates — wells that operators had abandoned on private landowner property. This project targets three of those wells in Boone and Dubois counties. Methane emissions are measured before and after plugging using a registry-approved technique to confirm that mitigation has been achieved. Because the wells were flowing gas, a cast iron bridge plug was set at the base, followed by a cement plug at least 50 feet below the underground drinking water source. The wells were then cut off 5 feet below grade. Over a 20-year crediting period, the project is expected to generate approximately 457,725 mtCO₂e in net credits. Plugging these wells also addresses direct risks to nearby communities and ecosystems. Beyond methane, orphaned wells can release benzene, a known carcinogen, and hydrogen sulfide, a toxic gas. The wells in this project were heavily contaminated with hydrogen sulfide, posing a serious hazard to anyone nearby. The project wells sat near farmland, homes, and in one case, a pond that supports local wildlife — all at risk from leaking gases and fluids. Tradewater, LLC developed and leads this project. The three wells are managed by Tradewater as a single aggregated project, with each well located on a different landowner's property. Tradewater led all plugging activities and holds rights to all carbon credits generated by the project.
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