CASTENO

Oil · District 10 · Lease #36577

Operator: STEPHENS & JOHNSON OPERATING CO.

Cum Oil

184k BBL

Cum Gas

0 MCF

Wells

3

Production

2001-02 — 2026-03

Peak Month

2001-05

Production History

Cum Oil: 183,768 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

5,951 BBL/mo

Di (annual)

109.3%

b-factor

0.4

EUR

107,925 BBL

R-squared

0.523

type

hyperbolic

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3STEPHENS & JOHNSON OPERATING CO.17,5002006-07-26
2RUWCO OIL AND GAS CORP.17,0002001-08-15
1RUWCO OIL AND GAS CORP.16,8002000-12-12
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