CUMMINS -B-

Oil · District 08 · Lease #12239

Operator: SLANT OPERATING, LLC

Cum Oil

784k BBL

Cum Gas

1.9M MCF

casinghead

Wells

27

Production

1993-01 — 2026-04

Peak Month

2014-01

Production History

Cum Oil: 783,901 BBL Cum Gas: 1,916,231 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

9,557 BBL/mo

Di (annual)

47.1%

b-factor

0.2

EUR

304,174 BBL

R-squared

0.886

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
1994-07 — 2007-03 ANADARKO PETROLEUM CORPORATION 153 mo
1993-01 — 1994-06 PHILLIPS PETROLEUM COMPANY 18 mo

Wells (27)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
30FORMENTERA OPERATIONS LLC47,0002014-08-13
32HFORMENTERA OPERATIONS LLC17,5002013-05-22
33HFORMENTERA OPERATIONS LLC17,5002013-05-22
20FORMENTERA OPERATIONS LLC26,5132003-05-08
31FORMENTERA OPERATIONS LLC37,0001999-09-30
29FORMENTERA OPERATIONS LLC17,0001997-07-09
26FORMENTERA OPERATIONS LLC16,5001995-06-23
27FORMENTERA OPERATIONS LLC16,5001995-06-23
28FORMENTERA OPERATIONS LLC16,5001995-06-23
16FORMENTERA OPERATIONS LLC26,5001995-04-06
17FORMENTERA OPERATIONS LLC26,5001995-04-06
19FORMENTERA OPERATIONS LLC16,5001995-04-06
21FORMENTERA OPERATIONS LLC16,5001995-04-06
22FORMENTERA OPERATIONS LLC16,5001995-04-06
23FORMENTERA OPERATIONS LLC16,5001995-04-06
24FORMENTERA OPERATIONS LLC16,5001995-04-06
18FORMENTERA OPERATIONS LLC26,5001995-04-05
12FORMENTERA OPERATIONS LLC16,2851980-05-14
15FORMENTERA OPERATIONS LLC16,3321980-05-14
1042-135-00366FORMENTERA OPERATIONS LLC------
1142-135-00367FORMENTERA OPERATIONS LLC------
1342-135-08480FORMENTERA OPERATIONS LLC------
1442-135-00369FORMENTERA OPERATIONS LLC------
642-135-00362FORMENTERA OPERATIONS LLC------
742-135-00363FORMENTERA OPERATIONS LLC------
842-135-00364FORMENTERA OPERATIONS LLC------
942-135-00365FORMENTERA OPERATIONS LLC------