KOONCE 'A'

Oil · District 08 · Lease #43655

Operator: ENDEAVOR ENERGY RESOURCES L.P.

Cum Oil

199k BBL

Cum Gas

379k MCF

casinghead

Wells

4

Production

2013-02 — 2026-04

Peak Month

2013-10

Production History

Cum Oil: 199,495 BBL Cum Gas: 378,620 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,584 BBL/mo

Di (annual)

156.8%

b-factor

1.5

EUR

274,600 BBL

R-squared

0.841

type

hyperbolic

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2013-02 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 143 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3DIAMONDBACK E&P LLC212,0002012-11-16
1DIAMONDBACK E&P LLC212,0002012-10-19
4DIAMONDBACK E&P LLC212,0002012-10-19
5DIAMONDBACK E&P LLC212,0002012-10-19