SLATOR -E-

Oil · District 08 · Lease #11585

Operator: SHELL WESTERN E&P INC.

Cum Oil

36k BBL

Cum Gas

201k MCF

casinghead

Wells

6

Production

1993-01 — 2018-02

Peak Month

1998-09

Production History

Cum Oil: 36,466 BBL Cum Gas: 201,283 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

647 BBL/mo

Di (annual)

38.8%

b-factor

0.5

EUR

36,257 BBL

R-squared

0.825

type

hyperbolic

Operator History (from monthly production reports)

2007-04 — 2018-06 APACHE CORPORATION 135 mo
1995-12 — 2007-03 ANADARKO PETROLEUM CORPORATION 136 mo
1993-01 — 1995-11 SHELL WESTERN E&P INC. 35 mo

Wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
12FORMENTERA OPERATIONS LLC18,1101993-11-08
1142-135-04574FORMENTERA OPERATIONS LLC------
442-135-04567FORMENTERA OPERATIONS LLC------
542-135-04568FORMENTERA OPERATIONS LLC------
642-135-04569SHELL OIL COMPANY------
8 U42-135-05977FORMENTERA OPERATIONS LLC------