RILEY, T. S. ESTATE "B"

Oil · District 8A · Lease #8449

Operator: XTO ENERGY INC.

Cum Oil

1.2M BBL

Cum Gas

218k MCF

casinghead

Wells

14

Production

1993-01 — 2026-04

Peak Month

2003-10

Production History

Cum Oil: 1,215,314 BBL Cum Gas: 217,819 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

17,850 BBL/mo

Di (annual)

20.3%

b-factor

0.0

EUR

1,057,404 BBL

R-squared

0.798

type

exponential

Operator History (from monthly production reports)

2025-04 — 2026-07 HILCORP ENERGY COMPANY 16 mo
2005-12 — 2025-03 XTO ENERGY INC. 232 mo
2003-06 — 2005-11 PLATINUM EXPLORATION INC. 30 mo
1993-09 — 2003-05 MAYNARD OIL CO. 117 mo
1993-01 — 1993-08 TEXACO E & P INC. 8 mo

Wells (14)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
9HILCORP ENERGY COMPANY111,3002012-01-12
9HHILCORP ENERGY COMPANY111,3002012-01-12
5HILCORP ENERGY COMPANY312,0002010-07-13
5HHILCORP ENERGY COMPANY312,0002010-07-13
2HILCORP ENERGY COMPANY212,0002009-12-23
2HHILCORP ENERGY COMPANY212,0002009-12-23
6DHILCORP ENERGY COMPANY312,5002004-05-27
7HHILCORP ENERGY COMPANY212,5002004-05-27
7RHILCORP ENERGY COMPANY212,5002004-05-27
142-165-03121HILCORP ENERGY COMPANY------
11W42-165-03012HILCORP ENERGY COMPANY------
1242-165-03013HILCORP ENERGY COMPANY------
442-165-03005HILCORP ENERGY COMPANY------
842-165-03009HILCORP ENERGY COMPANY------