UNIVERSITY -42-

Oil · District 08 · Lease #27091

Operator: SLANT OPERATING, LLC

Cum Oil

542k BBL

Cum Gas

694k MCF

casinghead

Wells

5

Production

1993-01 — 2026-04

Peak Month

2010-12

Production History

Cum Oil: 541,504 BBL Cum Gas: 693,904 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,578 BBL/mo

Di (annual)

7.8%

b-factor

0.0

EUR

390,337 BBL

R-squared

0.479

type

exponential

Operator History (from monthly production reports)

2023-11 — 2026-07 FORMENTERA OPERATIONS LLC 33 mo
2021-07 — 2023-10 SLANT OPERATING, LLC 28 mo
2010-12 — 2021-06 APACHE CORPORATION 127 mo
2002-01 — 2010-11 BP AMERICA PRODUCTION COMPANY 107 mo
1994-06 — 2001-12 ARCO PERMIAN 91 mo
1993-01 — 1994-05 ARCO OIL & GAS CO. 17 mo

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1FORMENTERA OPERATIONS LLC311,0402018-08-02
1 LFORMENTERA OPERATIONS LLC311,0402018-08-02
3FORMENTERA OPERATIONS LLC29,5002014-07-15
4FORMENTERA OPERATIONS LLC19,3752003-10-31
2FORMENTERA OPERATIONS LLC19,1501981-12-28