CMI (SPRABERRY) UNIT

Oil · District 11 · Lease #66543

Operator: STEPHENS, AUTRY C.

Cum Oil

114k BBL

Cum Gas

0 MCF

Wells

7

Production

1993-01 — 2022-02

Peak Month

1993-03

Production History

Cum Oil: 114,035 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

2,678 BBL/mo

Di (annual)

46.9%

b-factor

0.3

EUR

97,136 BBL

R-squared

0.819

type

hyperbolic

Wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6034R K PETROLEUM CORPORATION17,9001982-02-19
6122CHALLENGER MINERALS INC.27,9001981-10-30
6132CHALLENGER MINERALS INC.18,0001981-07-22
6133R K PETROLEUM CORPORATION17,8801981-05-14
6123R K PETROLEUM CORPORATION17,9151981-03-03
6131CHALLENGER MINERALS INC.18,0001981-01-23
6121CHALLENGER MINERALS INC.18,5001980-10-10
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