DARK STAR UNIT 1 & 2 ALLOCATION

Oil · District 08 · Lease #54523

Operator: XTO ENERGY INC.

Cum Oil

669k BBL

Cum Gas

3.9M MCF

casinghead

Wells

3

Production

2020-02 — 2026-04

Peak Month

2021-07

Production History

Cum Oil: 669,042 BBL Cum Gas: 3,915,467 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

101,741 BBL/mo

Di (annual)

413.7%

b-factor

0.5

EUR

587,465 BBL

R-squared

0.987

type

hyperbolic

Operator History (from monthly production reports)

2020-02 — 2026-07 XTO ENERGY INC. 78 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2165DHXTO ENERGY INC.110,0002019-09-04
2175JHXTO ENERGY INC.110,0002019-09-04
2105BHXTO ENERGY INC.110,0002019-08-29