GLASSCOCK "Y" FEE

Oil · District 08 · Lease #31498

Operator: TEXACO E & P INC.

Cum Oil

24k BBL

Cum Gas

98k MCF

casinghead

Wells

1

Production

1993-01 — 2001-08

Peak Month

1994-12

Production History

Cum Oil: 23,780 BBL Cum Gas: 97,727 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

319 BBL/mo

Di (annual)

20.3%

b-factor

0.0

EUR

18,838 BBL

R-squared

0.359

type

exponential

Operator History (from monthly production reports)

2000-09 — 2003-02 ENDEAVOR ENERGY RESOURCES L.P. 30 mo
1998-01 — 2000-08 STEPHENS, AUTRY C. 32 mo
1994-06 — 1997-12 ALTO MINERALS, INC. 43 mo
1993-01 — 1994-05 TEXACO E & P INC. 17 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5ENDEAVOR ENERGY RESOURCES L.P.28,6001987-09-14