DEVITT-JONES

Oil · District 8A · Lease #65384

Operator: GRUY PETROLEUM MANAGEMENT CO.

Fields: LEVELLAND

Cum Oil

126k BBL

Cum Gas

80k MCF

casinghead

Wells

1

Production

1993-01 — 2026-04

Peak Month

1994-08

Production History

Cum Oil: 126,301 BBL Cum Gas: 79,664 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

737 BBL/mo

Di (annual)

7.7%

b-factor

0.0

EUR

112,143 BBL

R-squared

0.881

type

exponential

Operator History (from monthly production reports)

2006-01 — 2026-07 FASKEN OIL AND RANCH, LTD. 247 mo
1996-07 — 2005-12 GRUY PETROLEUM MANAGEMENT CO. 114 mo
1995-06 — 1996-06 D C OIL COMPANY, INC. 13 mo
1993-01 — 1995-05 FULLER OPERATING COMPANY 29 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1FASKEN OIL AND RANCH, LTD.15,0001985-05-14