LEE HEFLEY

Oil · District 10 · Lease #9378

Operator: TECOLOTE ENERGY OPERATING, LLC

Fields: MILLS RANCH (GRANITE WASH CONS.)

Cum Oil

180k BBL

Cum Gas

764k MCF

casinghead

Wells

1

Production

2014-10 — 2026-04

Peak Month

2014-11

Production History

Cum Oil: 179,658 BBL Cum Gas: 763,784 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,946 BBL/mo

Di (annual)

66.2%

b-factor

0.5

EUR

134,901 BBL

R-squared

0.490

type

hyperbolic

Operator History (from monthly production reports)

2023-10 — 2026-07 MMGL TXPH, LLC 34 mo

2020-01 — 2023-09 BLACKBEARD OPERATING, LLC 45 mo

2016-07 — 2019-12 TECOLOTE ENERGY OPERATING, LLC 42 mo

2014-10 — 2016-06 DEVON ENERGY PRODUCTION CO, L.P. 21 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
4H	42-483-33859	MMGL TXPH, LLC	2	10,800	2014-07-08