< leases

HARPER "A"

Oil · District 06 · Lease #12515

Operator: XTO ENERGY INC.

Fields: LANEVILLE, NE. (PETTIT, LO.)

Cum Oil

100k BBL

Cum Gas

608k MCF

casinghead

Wells

2

Production

1993-01 — 2026-04

Peak Month

2012-08

Production History

Cum Oil: 99,633 BBL Cum Gas: 608,325 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

395 BBL/mo

Di (annual)

4.2%

b-factor

0.0

EUR

99,489 BBL

R-squared

0.354

type

exponential

Operator History (from monthly production reports)

2023-04 — 2026-07 FAULCONER ENERGY, LLC 40 mo
2008-01 — 2023-03 XTO ENERGY INC. 183 mo
2003-04 — 2007-12 NADEL AND GUSSMAN, L.L.C. 57 mo
2002-11 — 2003-03 NADEL & GUSSMAN 5 mo
2000-12 — 2002-10 OCEAN ENERGY, INC. 23 mo
1998-07 — 2000-11 SEAGULL ENERGY E&P INC. 29 mo
1996-10 — 1998-06 BRG PETROLEUM, INC. 21 mo
1993-01 — 1996-09 MARATHON OIL COMPANY 45 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
242-401-32090FAULCONER ENERGY, LLC38,1002013-09-09
142-401-31095FAULCONER ENERGY, LLC28,1001992-05-13