31 CFR §589.334
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
The term shale projects as used in § 589.205 includes projects that have the potential to produce oil from resources located in shale formations as well as projects that have the potential to produce oil from resources located in fine-grained sedimentary rock formations including shale, limestone, dolomites, sandstones, and clay.