SHACKELFORD

Oil · District 7C · Lease #11392

Operator: KEYSTONE ENERGY OIL & GAS, INC.

Cum Oil

39k BBL

Cum Gas

204k MCF

casinghead

Wells

7

Production

1993-01 — 2001-02

Peak Month

1993-07

Production History

Cum Oil: 39,289 BBL Cum Gas: 204,329 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,130 BBL/mo

Di (annual)

40.5%

b-factor

0.0

EUR

33,495 BBL

R-squared

0.744

type

exponential

Operator History (from monthly production reports)

1993-01 — 2003-08 KEYSTONE ENERGY OIL & GAS, INC. 128 mo

Wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4KEYSTONE ENERGY OIL & GAS INC.19,0001984-11-07
5KEYSTONE ENERGY OIL & GAS INC.19,0001984-11-07
7KEYSTONE ENERGY OIL & GAS INC.19,0001984-11-07
3KEYSTONE ENERGY OIL & GAS INC.19,0001984-11-06
6KEYSTONE ENERGY OIL & GAS INC.19,0001984-11-05
2KEYSTONE ENERGY OIL & GAS INC.19,0001984-11-02
1KEYSTONE ENERGY OIL & GAS INC.19,0001984-10-10