PIERSON, WILLIAM ESTATE

Oil · District 8A · Lease #19223

Operator: XTO ENERGY INC.

Cum Oil

188k BBL

Cum Gas

97k MCF

casinghead

Wells

7

Production

1993-01 — 2005-10

Peak Month

1994-03

Production History

Cum Oil: 188,440 BBL Cum Gas: 96,582 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

6,112 BBL/mo

Di (annual)

125.4%

b-factor

1.0

EUR

243,056 BBL

R-squared

0.932

type

hyperbolic

Operator History (from monthly production reports)

2001-06 — 2006-04 XTO ENERGY INC. 59 mo
1993-05 — 2001-05 CROSS TIMBERS OPERATING COMPANY 97 mo
1993-01 — 1993-04 SHELL WESTERN E&P INC. 4 mo

Wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
15HILCORP ENERGY COMPANY411,0662013-07-09
11HILCORP ENERGY COMPANY111,0452009-05-27
14HILCORP ENERGY COMPANY310,8002008-06-16
10HILCORP ENERGY COMPANY210,9002007-07-27
13HILCORP ENERGY COMPANY19881994-08-09
20HILCORP ENERGY COMPANY16,9001993-11-05
19HILCORP ENERGY COMPANY16,9001993-11-03