DARK STAR UNIT 1

Oil · District 08 · Lease #54002

Operator: XTO ENERGY INC.

Cum Oil

3.1M BBL

Cum Gas

17.1M MCF

casinghead

Wells

15

Production

2020-01 — 2026-04

Peak Month

2021-07

Production History

Cum Oil: 3,083,391 BBL Cum Gas: 17,133,053 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

413,645 BBL/mo

Di (annual)

504.4%

b-factor

0.7

EUR

2,938,074 BBL

R-squared

0.980

type

hyperbolic

Operator History (from monthly production reports)

2020-01 — 2026-07 XTO ENERGY INC. 79 mo

Wells (15)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2121SHXTO ENERGY INC.110,0002019-08-22
2131SHXTO ENERGY INC.110,0002019-08-22
2111AHXTO ENERGY INC.110,0002019-08-21
2144LHXTO ENERGY INC.110,0002019-08-21
2102BHXTO ENERGY INC.110,0002019-08-20
2103BHXTO ENERGY INC.110,0002019-08-20
2113AHXTO ENERGY INC.110,0002019-08-20
2114AHXTO ENERGY INC.110,0002019-08-20
2123SHXTO ENERGY INC.110,0002019-08-20
2124SHXTO ENERGY INC.110,0002019-08-20
2143LHXTO ENERGY INC.110,0002019-08-20
2162DHXTO ENERGY INC.110,0002019-08-20
2163DHXTO ENERGY INC.110,0002019-08-20
2172JHXTO ENERGY INC.110,0002019-08-20
2173JHXTO ENERGY INC.110,0002019-08-20