Horizontal development within the Delaware Basin has been primarily focused on 6 Counties in Texas (Culberson, Loving, Pecos, Reeves, Ward, and Winkler) and 2 in New Mexico (Eddy and Lea). Horizontal wells within the Basin are landed within the following benches:
- Bone Spring / Avalon – The Bone Spring is typically divided further into 1st, 2nd, and 3rd Bone Spring benches. Each Bone Spring bench is comprised of an alternating carbonate-sand sequence. Generally, the Bone Spring has been developed more heavily to date in New Mexico than in Texas, and the 2nd Bone Spring has been the most heavily targeted of the three benches.
- Wolfcamp – The Wolfcamp is typically divided further into Wolfcamp XY, A, B, and C benches. Generally, the Wolfcamp has been developed more heavily to date in Texas than in New Mexico, and the Wolfcamp A has been the most heavily targeted of the four benches.
- Other Horizonal Targets – Since 2008, Delaware Basin Horizontals completed outside of the Bone Spring/Avalon, or Wolfcamp have generally targeted the Delaware Mountain Group (e.g., Bell Canyon, Cherry Canyon, or Brushy Canyon) or Barnett/Woodford intervals at Alpine High.