R & L UNIT

Oil · District 03 · Lease #23440

Operator: XTO ENERGY INC.

Fields: GIDDINGS (AUSTIN CHALK-3)

Cum Oil

20k BBL

Cum Gas

254k MCF

casinghead

Wells

1

Production

1997-09 — 2012-08

Peak Month

1997-12

Production History

Cum Oil: 20,031 BBL Cum Gas: 253,814 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

823 BBL/mo

Di (annual)

68.6%

b-factor

0.4

EUR

23,575 BBL

R-squared

0.822

type

hyperbolic

Operator History (from monthly production reports)

2007-07 — 2012-10 XTO ENERGY INC. 64 mo

2001-12 — 2007-06 DOMINION OKLAHOMA TEXAS E&P, INC 67 mo

2000-07 — 2001-11 DREYFUS, LOUIS NATURAL GAS CORP 17 mo

1997-09 — 2000-06 COSTILLA ENERGY, INC. 34 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1 H	42-051-30804	XTO ENERGY INC.	2	12,000	1997-07-02