HOLCOMB "40"

Oil · District 08 · Lease #38592

Operator: ENDEAVOR ENERGY RESOURCES L.P.

Cum Oil

205k BBL

Cum Gas

225k MCF

casinghead

Wells

4

Production

2008-01 — 2026-04

Peak Month

2019-06

Production History

Cum Oil: 204,540 BBL Cum Gas: 224,867 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,070 BBL/mo

Di (annual)

14.2%

b-factor

0.0

EUR

174,404 BBL

R-squared

0.730

type

exponential

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2008-01 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 204 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1DIAMONDBACK E&P LLC212,0002015-07-02
4DIAMONDBACK E&P LLC212,0002014-07-07
3DIAMONDBACK E&P LLC112,0002013-09-26
2DIAMONDBACK E&P LLC212,0002011-10-14