< leases

SALLIE 'F'

Oil · District 08 · Lease #38512

Operator: HENRY PETROLEUM LP

Fields: SALLIE ANN (SPRABERRY-WOLFCAMP)

Cum Oil

227k BBL

Cum Gas

471k MCF

casinghead

Wells

6

Production

2007-12 — 2026-04

Peak Month

2013-06

Production History

Cum Oil: 226,815 BBL Cum Gas: 470,742 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,579 BBL/mo

Di (annual)

26.7%

b-factor

0.5

EUR

201,896 BBL

R-squared

0.539

type

hyperbolic

Operator History (from monthly production reports)

2022-12 — 2026-07 DIAMONDBACK E&P LLC 44 mo
2022-02 — 2022-11 FIREBIRD ENERGY LLC 10 mo
2019-09 — 2022-01 CHEVRON MIDCONTINENT, L.P. 29 mo
2009-01 — 2019-08 COG OPERATING LLC 128 mo
2007-12 — 2008-12 HENRY PETROLEUM LP 13 mo

Wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
71542-135-42068DIAMONDBACK E&P LLC112,0002012-11-07
71442-135-42067DIAMONDBACK E&P LLC112,0002012-11-06
70242-135-40027DIAMONDBACK E&P LLC210,8002009-11-18
70342-135-39694DIAMONDBACK E&P LLC110,8002008-10-22
70642-135-39464DIAMONDBACK E&P LLC210,8002008-03-11
70742-135-39343DIAMONDBACK E&P LLC110,8002007-07-10