GLASSCOCK 'M' FEE

Oil · District 08 · Lease #35083

Operator: XTO ENERGY INC.

Fields: POWELL (PENN)

Cum Oil

109k BBL

Cum Gas

2.5M MCF

casinghead

Wells

2

Production

1996-09 — 2026-04

Peak Month

2003-12

Production History

Cum Oil: 108,613 BBL Cum Gas: 2,504,731 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

840 BBL/mo

Di (annual)

10.2%

b-factor

0.0

EUR

98,250 BBL

R-squared

0.477

type

exponential

Operator History (from monthly production reports)

2004-08 — 2026-07 XTO ENERGY INC. 264 mo
2002-06 — 2004-07 CHEVRON U. S. A. INC. 26 mo
1996-09 — 2002-05 TEXACO E & P INC. 69 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2XTO ENERGY INC.211,4502003-10-21
3XTO ENERGY INC.310,2301997-03-03