< leases

JOHN OTIS -B-

Oil · District 08 · Lease #27791

Operator: MARATHON OIL COMPANY

Fields: HOWARD GLASSCOCK

Cum Oil

31k BBL

Cum Gas

21 MCF

casinghead

Wells

4

Production

1993-01 — 2011-11

Peak Month

1999-10

Production History

Cum Oil: 31,421 BBL Cum Gas: 21 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

232 BBL/mo

Di (annual)

14.1%

b-factor

0.0

EUR

19,587 BBL

R-squared

0.630

type

exponential

Operator History (from monthly production reports)

2006-04 — 2012-11 LEGACY RESERVES OPERATING LP 80 mo
1999-11 — 2006-03 BROTHERS PRODUCTION COMPANY INC. 77 mo
1996-04 — 1999-10 MARATHON OIL COMPANY 43 mo
1993-01 — 1996-03 GUTHRIE, A. K. OPERATING CO. 39 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
442-227-33091EXTEX OPERATING COMPANY12,5001983-06-06
342-227-33080EXTEX OPERATING COMPANY12,5001983-05-16
242-227-32953EXTEX OPERATING COMPANY12,5001982-10-29
142-227-32918EXTEX OPERATING COMPANY12,5001982-09-29