TXL -E-

Oil · District 08 · Lease #15708

Operator: SLANT OPERATING, LLC

Cum Oil

111k BBL

Cum Gas

766k MCF

casinghead

Wells

5

Production

1993-01 — 2024-12

Peak Month

1994-06

Production History

Cum Oil: 111,235 BBL Cum Gas: 765,864 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

866 BBL/mo

Di (annual)

21.3%

b-factor

0.4

EUR

74,696 BBL

R-squared

0.757

type

hyperbolic

Operator History (from monthly production reports)

2023-11 — 2026-07 FORMENTERA OPERATIONS LLC 33 mo
2021-07 — 2023-10 SLANT OPERATING, LLC 28 mo
2007-04 — 2021-06 APACHE CORPORATION 171 mo
1995-12 — 2007-03 ANADARKO PETROLEUM CORPORATION 136 mo
1993-01 — 1995-11 SHELL WESTERN E&P INC. 35 mo

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
11FORMENTERA OPERATIONS LLC29,9002010-02-09
9FORMENTERA OPERATIONS LLC18,6481996-12-30
9 UFORMENTERA OPERATIONS LLC18,6481996-12-30
10SHELL OIL COMPANY19,3831986-10-22
342-135-05972SHELL OIL COMPANY------