The Midland Basin consists of Martin, Howard, Midland, Glasscock, Upton and Reagan counties. These “Core Six” counties are the center of focus for Endeavor’s horizontal drilling operations. Once thought to be uneconomic properties, these core counties are now the foundation for West Texas’ oil inventory. Improvements in drilling and completion technologies, process improvements, and hardworking men and woman have led to a world leading supply chain in West Texas. With a large asset position of over 350,000 net acres in the Midland Basin Endeavor is poised for unparalleled growth as it executes its drilling program. An estimated 98% of Endeavor’s assets in the Midland Basin have yet to be drilled.