THORNTON, BLUFORD "A"

Oil · District 08 · Lease #35826

Operator: UPP OPERATING, LLC

Fields: BLOCK 16 (ATOKA)

Cum Oil

109k BBL

Cum Gas

306k MCF

casinghead

Wells

1

Production

1997-09 — 2026-04

Peak Month

1997-10

Production History

Cum Oil: 108,793 BBL Cum Gas: 305,776 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

646 BBL/mo

Di (annual)

6.5%

b-factor

0.0

EUR

114,597 BBL

R-squared

0.609

type

exponential

Operator History (from monthly production reports)

2019-04 — 2026-07 UPP OPERATING, LLC 88 mo

2014-10 — 2019-03 ENERVEST OPERATING, L.L.C. 54 mo

2008-01 — 2014-09 HIGHMOUNT EXPL & PROD TEXAS LLC 81 mo

2001-12 — 2007-12 DOMINION OKLAHOMA TEXAS E&P, INC 73 mo

1997-09 — 2001-11 DREYFUS, LOUIS NATURAL GAS CORP 51 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
8202	42-475-34499	UPP OPERATING, LLC	1	11,600	1997-07-10