BLALOCK F

Oil · District 08 · Lease #42668

Operator: XTO ENERGY INC.

Fields: ZANT 38 (FUSSELMAN)

Cum Oil

20k BBL

Cum Gas

88k MCF

casinghead

Wells

1

Production

2011-11 — 2013-06

Peak Month

2013-06

Production History

Cum Oil: 19,531 BBL Cum Gas: 88,152 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,515 BBL/mo

Di (annual)

120.0%

b-factor

2.0

EUR

151,483 BBL

R-squared

0.493

type

hyperbolic

Operator History (from monthly production reports)

2014-11 — 2015-01 XTO ENERGY INC. 3 mo

2014-07 — 2014-10 LINN OPERATING, INC. 4 mo

2011-11 — 2014-06 BERRY OIL COMP. 32 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
113	42-173-34273	XTO ENERGY INC.	2	12,000	2011-06-07