ARMSTRONG, ELIZABETH

Oil · District 08 · Lease #9945

Operator: XTO ENERGY INC.

Cum Oil

244k BBL

Cum Gas

247k MCF

casinghead

Wells

7

Production

1993-01 — 2026-04

Peak Month

1993-03

Production History

Cum Oil: 244,397 BBL Cum Gas: 247,031 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,637 BBL/mo

Di (annual)

22.1%

b-factor

0.4

EUR

219,938 BBL

R-squared

0.839

type

hyperbolic

Operator History (from monthly production reports)

2025-04 — 2026-07 HILCORP ENERGY COMPANY 16 mo
2012-01 — 2025-03 XTO ENERGY INC. 159 mo
2000-04 — 2011-12 EXXON MOBIL CORPORATION 141 mo
1993-01 — 2000-03 EXXON CORP. 87 mo

Wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
7HILCORP ENERGY COMPANY29,6001998-07-23
7DHILCORP ENERGY COMPANY29,6001998-07-23
8HILCORP ENERGY COMPANY29,6001995-06-29
6HILCORP ENERGY COMPANY19,6001982-01-27
5HILCORP ENERGY COMPANY19,5001981-03-13
4HILCORP ENERGY COMPANY19,5001979-07-06
242-003-02631HILCORP ENERGY COMPANY------