SSU ALLOCATION #4

Oil · District 01 · Lease #18688

Operator: XTO ENERGY INC.

Cum Oil

462k BBL

Cum Gas

575k MCF

casinghead

Wells

1

Production

2015-07 — 2026-04

Peak Month

2017-05

Production History

Cum Oil: 461,501 BBL Cum Gas: 574,937 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

15,113 BBL/mo

Di (annual)

152.9%

b-factor

1.2

EUR

668,837 BBL

R-squared

0.982

type

hyperbolic

Operator History (from monthly production reports)

2015-07 — 2026-07 XTO ENERGY INC. 133 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
B 12HXTO ENERGY INC.211,0002015-05-13