COWDEN -13-

Oil · District 10 · Lease #31983

Operator: CITATION OIL & GAS CORP.

Cum Oil

597k BBL

Cum Gas

0 MCF

Wells

9

Production

1993-01 — 2026-03

Peak Month

1995-10

Production History

Cum Oil: 597,187 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

2,974 BBL/mo

Di (annual)

7.4%

b-factor

0.6

EUR

651,537 BBL

R-squared

0.911

type

hyperbolic

Wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5GSAGE ENERGY COMPANY26,0001991-08-07
8GSAGE ENERGY COMPANY16,0001991-07-15
5GRSAGE ENERGY COMPANY16,0001991-04-23
7GSAGE ENERGY COMPANY16,0001990-06-20
6GSAGE ENERGY COMPANY16,0001990-01-18
4GSAGE ENERGY COMPANY16,0001989-04-10
3GSAGE ENERGY COMPANY16,0001988-12-23
1SAGE ENERGY COMPANY29,5001988-11-01
2SAGE ENERGY COMPANY29,5001988-08-19
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