UNIVERSITY 20-B

Oil · District 08 · Lease #35674

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

282k BBL

Cum Gas

352k MCF

casinghead

Wells

2

Production

1997-11 — 2026-04

Peak Month

2022-10

Production History

Cum Oil: 281,907 BBL Cum Gas: 352,309 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

9,497 BBL/mo

Di (annual)

266.8%

b-factor

0.9

EUR

176,607 BBL

R-squared

0.928

type

hyperbolic

Operator History (from monthly production reports)

2022-11 — 2026-07 PETRO-HUNT PERMIAN, LLC 45 mo
2019-02 — 2022-10 DIAMONDBACK E&P LLC 45 mo
2010-09 — 2019-01 ENERGEN RESOURCES CORPORATION 101 mo
2004-09 — 2010-08 COX, MARTIN REGAN 72 mo
1997-11 — 2004-08 PIONEER NATURAL RES. USA, INC. 82 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1PETRO-HUNT PERMIAN, LLC311,8002012-09-10
1HPETRO-HUNT PERMIAN, LLC111,5002012-02-28