BORDEN (SPRABERRY) UNIT

Oil · District 8A · Lease #66710

Operator: UMC PETROLEUM CORPORATION

Cum Oil

1.5M BBL

Cum Gas

426k MCF

casinghead

Wells

19

Production

1993-01 — 2026-03

Peak Month

2001-04

Production History

Cum Oil: 1,487,719 BBL Cum Gas: 426,404 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

7,487 BBL/mo

Di (annual)

14.1%

b-factor

1.0

EUR

1,327,533 BBL

R-squared

0.871

type

hyperbolic

Operator History (from monthly production reports)

2011-01 — 2026-07 ESTANCIA OIL & GAS, LLC 187 mo
2007-05 — 2010-12 HONECK OIL COMPANY, LP 44 mo
2000-06 — 2007-04 HONECK OIL COMPANY 83 mo
1998-08 — 2000-05 OCEAN ENERGY, INC. 22 mo
1995-01 — 1998-07 UMC PETROLEUM CORPORATION 43 mo
1993-01 — 1994-12 GENERAL ATLANTIC RESOURCES, INC. 24 mo

Wells (19)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
209ESTANCIA OIL & GAS, LLC17,6002024-04-25
306ESTANCIA OIL & GAS, LLC17,6002024-04-25
208ESTANCIA OIL & GAS, LLC17,5002000-12-27
207ESTANCIA OIL & GAS, LLC17,5001993-06-30
205ESTANCIA OIL & GAS, LLC17,6501992-03-09
301ESTANCIA OIL & GAS, LLC17,7001992-03-09
203ESTANCIA OIL & GAS, LLC17,5501983-09-26
102ESTANCIA OIL & GAS, LLC17,5001983-08-10
103ESTANCIA OIL & GAS, LLC17,5101983-03-09
106ESTANCIA OIL & GAS, LLC28,0001983-01-26
105ESTANCIA OIL & GAS, LLC17,5001981-06-01
304ESTANCIA OIL & GAS, LLC17,6001981-01-26
10142-033-30071ESTANCIA OIL & GAS, LLC------
20142-033-30246ESTANCIA OIL & GAS, LLC------
20242-033-30063ESTANCIA OIL & GAS, LLC------
20442-033-30049ESTANCIA OIL & GAS, LLC------
30242-033-00876ESTANCIA OIL & GAS, LLC------
30342-033-30097ESTANCIA OIL & GAS, LLC------
30542-033-30107ESTANCIA OIL & GAS, LLC------