MIDKIFF 42-43 ALLOCATION 4311

Oil · District 08 · Lease #47419

Operator: XTO ENERGY INC.

Cum Oil

406k BBL

Cum Gas

1.1M MCF

casinghead

Wells

1

Production

2015-12 — 2026-04

Peak Month

2016-04

Production History

Cum Oil: 405,612 BBL Cum Gas: 1,083,762 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

15,476 BBL/mo

Di (annual)

91.4%

b-factor

0.5

EUR

389,221 BBL

R-squared

0.877

type

hyperbolic

Operator History (from monthly production reports)

2015-12 — 2026-07 XTO ENERGY INC. 128 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4311AHXTO ENERGY INC.110,2002015-05-20