COLBERT, E. K.

Oil · District 08 · Lease #905

Operator: GILLIAM'S AGHORN ENERGY

Fields: COWDEN, SOUTH

Cum Oil

226k BBL

Cum Gas

60k MCF

casinghead

Wells

11

Production

1993-01 — 2026-02

Peak Month

1994-03

Production History

Cum Oil: 225,764 BBL Cum Gas: 60,370 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,211 BBL/mo

Di (annual)

8.9%

b-factor

0.4

EUR

213,333 BBL

R-squared

0.842

type

hyperbolic

Operator History (from monthly production reports)

1996-11 — 2026-07 AGHORN OPERATING, INC. 357 mo
1994-03 — 1996-10 GILLIAM'S AGHORN ENERGY 32 mo
1993-01 — 1994-02 FINA OIL & CHEMICAL COMPANY 14 mo

Wells (11)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
12AGHORN OPERATING, INC.24,8141989-06-22
11AGHORN OPERATING, INC.14,8001988-03-03
10AGHORN OPERATING, INC.14,8001988-02-11
142-135-07821AGHORN OPERATING, INC.------
242-135-07822AGHORN OPERATING, INC.------
342-135-07823AGHORN OPERATING, INC.------
4 A42-135-07826AGHORN OPERATING, INC.------
542-135-07824AGHORN OPERATING, INC.------
6W42-135-21301AGHORN OPERATING, INC.------
7W42-135-20107AGHORN OPERATING, INC.------
9W42-135-32171AGHORN OPERATING, INC.------