RUFUS 11

Oil · District 08 · Lease #39459

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

340k BBL

Cum Gas

273k MCF

casinghead

Wells

8

Production

2009-01 — 2025-09

Peak Month

2012-05

Production History

Cum Oil: 340,199 BBL Cum Gas: 273,221 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,382 BBL/mo

Di (annual)

14.3%

b-factor

0.1

EUR

312,662 BBL

R-squared

0.825

type

hyperbolic

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2019-01 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 72 mo
2017-06 — 2018-12 PETROLEGACY ENERGY II, LLC 19 mo
2009-01 — 2017-05 PIONEER NATURAL RES. USA, INC. 101 mo

Wells (8)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
13DIAMONDBACK E&P LLC110,9002013-12-12
10DIAMONDBACK E&P LLC110,9002011-10-12
7DIAMONDBACK E&P LLC110,8002011-06-13
5DIAMONDBACK E&P LLC110,7002011-01-27
4DIAMONDBACK E&P LLC111,0002010-06-25
3DIAMONDBACK E&P LLC210,9002010-01-08
2DIAMONDBACK E&P LLC110,3502008-12-22
1DIAMONDBACK E&P LLC210,5002008-09-16