COWDEN -13-

Oil · District 08 · Lease #31983

Operator: CITATION OIL & GAS CORP.

Cum Oil

600k BBL

Cum Gas

210k MCF

casinghead

Wells

9

Production

1993-01 — 2026-02

Peak Month

1994-03

Production History

Cum Oil: 600,120 BBL Cum Gas: 209,530 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,973 BBL/mo

Di (annual)

7.4%

b-factor

0.6

EUR

651,565 BBL

R-squared

0.912

type

hyperbolic

Operator History (from monthly production reports)

2019-10 — 2026-07 AGHORN OPERATING, INC. 82 mo
1993-01 — 2019-09 CITATION OIL & GAS CORP. 321 mo

Wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5GAGHORN OPERATING, INC.26,0001991-08-07
8GAGHORN OPERATING, INC.16,0001991-07-15
5GRAGHORN OPERATING, INC.16,0001991-04-23
7GAGHORN OPERATING, INC.16,0001990-06-20
6GAGHORN OPERATING, INC.16,0001990-01-18
4GAGHORN OPERATING, INC.16,0001989-04-10
3GAGHORN OPERATING, INC.16,0001988-12-23
1AGHORN OPERATING, INC.29,5001988-11-01
2AGHORN OPERATING, INC.29,5001988-08-19