KOONCE "2"

Oil · District 08 · Lease #36798

Operator: ENDEAVOR ENERGY RESOURCES L.P.

Cum Oil

480k BBL

Cum Gas

973k MCF

casinghead

Wells

8

Production

2001-10 — 2026-04

Peak Month

2011-09

Production History

Cum Oil: 480,041 BBL Cum Gas: 973,098 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,993 BBL/mo

Di (annual)

36.9%

b-factor

1.1

EUR

520,190 BBL

R-squared

0.879

type

hyperbolic

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2001-10 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 279 mo

Wells (8)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2DIAMONDBACK E&P LLC211,0002018-09-21
5DIAMONDBACK E&P LLC212,0002018-08-03
1DIAMONDBACK E&P LLC211,0002018-08-02
4DIAMONDBACK E&P LLC312,0002018-08-02
8DIAMONDBACK E&P LLC112,0002010-05-20
7DIAMONDBACK E&P LLC112,0002010-03-17
6DIAMONDBACK E&P LLC112,0002010-03-02
3DIAMONDBACK E&P LLC312,0002008-01-04