NIX-SOUTH UNIT

Oil · District 08 · Lease #20638

Operator: UMC PETROLEUM CORPORATION

Fields: NIX, SOUTH

Cum Oil

131k BBL

Cum Gas

94k MCF

casinghead

Wells

17

Production

1993-01 — 2026-04

Peak Month

2011-08

Production History

Cum Oil: 131,249 BBL Cum Gas: 94,276 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,837 BBL/mo

Di (annual)

21.1%

b-factor

0.0

EUR

104,342 BBL

R-squared

0.608

type

exponential

Operator History (from monthly production reports)

2021-08 — 2026-07 MONTARE OPERATING, LTD. 60 mo
2018-11 — 2021-07 AVALON TX OPERATING, LLC 33 mo
2010-08 — 2018-10 SANDRIDGE EXPL. AND PROD., LLC 99 mo
2005-07 — 2010-07 OK ARENA OPERATING COMPANY 61 mo
1996-09 — 2005-06 FRIEMEL, PAUL D. & ASSOC., INC. 106 mo
1996-01 — 1996-08 STRATCO OPERATING CO., INC. 8 mo
1993-09 — 1995-12 UMC PETROLEUM CORPORATION 28 mo
1993-01 — 1993-08 JAXPLORATION COMPANY L.C. 8 mo

Wells (17)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
25MONTARE OPERATING, LTD.27,5002012-09-21
16MONTARE OPERATING, LTD.17,5002011-06-16
6MONTARE OPERATING, LTD.27,5002011-05-19
27MONTARE OPERATING, LTD.17,5002011-01-28
24MONTARE OPERATING, LTD.17,5002011-01-27
26MONTARE OPERATING, LTD.17,5002011-01-18
23MONTARE OPERATING, LTD.17,5002010-02-10
22MONTARE OPERATING, LTD.17,5002010-01-13
13MONTARE OPERATING, LTD.14,8002005-08-19
15MONTARE OPERATING, LTD.15,5502003-08-29
14W42-003-01493MONTARE OPERATING, LTD.------
1742-003-01532MONTARE OPERATING, LTD.------
1842-003-01533MONTARE OPERATING, LTD.------
1W42-003-03223MONTARE OPERATING, LTD.------
242-003-04175MONTARE OPERATING, LTD.------
20W42-003-03130MONTARE OPERATING, LTD.------
4W42-003-03216MONTARE OPERATING, LTD.------