< leases

CHEST THUMPER 1-5 UNIT 1

Oil · District 08 · Lease #60617

Operator: ENDEAVOR ENERGY RESOURCES L.P.

Fields: SPRABERRY (TREND AREA)

Cum Oil

3.1M BBL

Cum Gas

6.3M MCF

casinghead

Wells

12

Production

2023-08 — 2026-04

Peak Month

2024-07

Production History

Cum Oil: 3,084,147 BBL Cum Gas: 6,280,613 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

385,405 BBL/mo

Di (annual)

176.4%

b-factor

0.1

EUR

2,917,170 BBL

R-squared

0.981

type

hyperbolic

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2023-08 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 17 mo

Wells (12)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
143R42-317-45468DIAMONDBACK E&P LLC19,2642023-08-03
13542-317-45288DIAMONDBACK E&P LLC19,2642023-06-20
13642-317-45289DIAMONDBACK E&P LLC19,2642023-06-20
14242-317-45290DIAMONDBACK E&P LLC19,2642023-06-16
14342-317-45291DIAMONDBACK E&P LLC19,2642023-06-16
13342-317-45287DIAMONDBACK E&P LLC19,2642023-06-12
12342-317-45283DIAMONDBACK E&P LLC19,2642023-06-09
12542-317-45284DIAMONDBACK E&P LLC19,2642023-06-09
12642-317-45285DIAMONDBACK E&P LLC19,2642023-06-09
11242-317-45281DIAMONDBACK E&P LLC19,2642023-06-08
12242-317-45282DIAMONDBACK E&P LLC19,2642023-06-08
13242-317-45286DIAMONDBACK E&P LLC19,2642023-06-08