PIERSON, WILLIAM ESTATE

Oil · District 8A · Lease #18452

Operator: XTO ENERGY INC.

Cum Oil

941k BBL

Cum Gas

1.0M MCF

casinghead

Wells

7

Production

1993-01 — 2026-04

Peak Month

1997-05

Production History

Cum Oil: 941,195 BBL Cum Gas: 1,023,648 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,197 BBL/mo

Di (annual)

13.5%

b-factor

2.0

EUR

1,047,786 BBL

R-squared

0.781

type

hyperbolic

Operator History (from monthly production reports)

2025-05 — 2026-07 HILCORP ENERGY COMPANY 15 mo
2001-06 — 2025-04 XTO ENERGY INC. 287 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
11HILCORP ENERGY COMPANY111,0452009-05-27
23HILCORP ENERGY COMPANY15,2001995-05-03
21HILCORP ENERGY COMPANY15,2001994-12-01
1HILCORP ENERGY COMPANY17,7271978-03-24
642-165-02467HILCORP ENERGY COMPANY------
742-165-02468HILCORP ENERGY COMPANY------
7 U42-165-02468HILCORP ENERGY COMPANY------