Scoop/Stack Map is published by World Oil. Oklahoma's Anadarko basin has become second only to the Permian basin as a popular and prolific area of shale activity in the U.S., courtesy of two specific plays. The SCOOP (South Central Oklahoma Oil Province) play has seen interest skyrocket since 2012, when Continental Resources first looked for oil-based resources adjacent to its Woodford gas holdings. The STACK (Sooner Trend Anadarko Basin Canadian and Kingfisher Counties) play, like the SCOOP, is not new. Yet, it has been revitalized by horizontal drilling and hydraulic fracturing.