HKH ALLOCATION #4

Oil · District 01 · Lease #18810

Operator: XTO ENERGY INC.

Cum Oil

205k BBL

Cum Gas

350k MCF

casinghead

Wells

1

Production

2016-01 — 2026-04

Peak Month

2017-05

Production History

Cum Oil: 205,113 BBL Cum Gas: 349,696 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,603 BBL/mo

Di (annual)

27.2%

b-factor

0.0

EUR

114,855 BBL

R-squared

0.308

type

exponential

Operator History (from monthly production reports)

2016-01 — 2026-07 XTO ENERGY INC. 127 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
D 16HXTO ENERGY INC.213,0002015-08-21