CASTENO

Oil · District 08 · Lease #36577

Operator: STEPHENS & JOHNSON OPERATING CO.

Cum Oil

184k BBL

Cum Gas

747k MCF

casinghead

Wells

3

Production

2001-02 — 2016-09

Peak Month

2001-12

Production History

Cum Oil: 183,768 BBL Cum Gas: 747,104 MCF

RRC production reported through Apr 2026 · recent months incomplete

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

Operator History (from monthly production reports)

2006-06 — 2026-07 STEPHENS & JOHNSON OPERATING CO. 242 mo
2001-02 — 2006-05 RUWCO OIL AND GAS CORP. 64 mo

Wells (3)

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