SAUNDERS -A-

Oil · District 10 · Lease #553

Operator: XTO ENERGY INC.

Cum Oil

86k BBL

Cum Gas

243k MCF

casinghead

Wells

6

Production

1993-01 — 2026-04

Peak Month

1993-06

Production History

Cum Oil: 85,703 BBL Cum Gas: 242,667 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

464 BBL/mo

Di (annual)

7.1%

b-factor

0.0

EUR

76,074 BBL

R-squared

0.758

type

exponential

Operator History (from monthly production reports)

2021-11 — 2026-07 LARGE OPERATING LLC 57 mo
2004-09 — 2021-10 XTO ENERGY INC. 206 mo
2002-06 — 2004-08 CHEVRON U. S. A. INC. 27 mo
1993-01 — 2002-05 TEXACO E & P INC. 113 mo

Wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
10LARGE OPERATING LLC13,2501995-11-15
242-179-01549LARGE OPERATING LLC------
542-179-01553LARGE OPERATING LLC------
642-179-01556LARGE OPERATING LLC------
6W42-179-01556LARGE OPERATING LLC------
742-179-08121LARGE OPERATING LLC------