NORTHRUP-LINDSEY

Oil · District 8A · Lease #5101

Operator: MARALO, LLC

Fields: RILEY, NORTH

Cum Oil

397k BBL

Cum Gas

120k MCF

casinghead

Wells

4

Production

1993-01 — 2026-04

Peak Month

1994-08

Production History

Cum Oil: 396,910 BBL Cum Gas: 120,366 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,444 BBL/mo

Di (annual)

2.8%

b-factor

0.0

EUR

468,592 BBL

R-squared

0.450

type

exponential

Operator History (from monthly production reports)

2021-02 — 2026-07 EXTEX OPERATING COMPANY 66 mo
2013-01 — 2021-01 LEGACY RESERVES OPERATING LP 97 mo
2004-12 — 2012-12 COG OPERATING LLC 97 mo
1999-01 — 2004-11 MARALO, LLC 71 mo
1993-01 — 1998-12 MARALO, INC. 72 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4EXTEX OPERATING COMPANY110,8002010-09-21
3EXTEX OPERATING COMPANY17,1001981-07-22
142-165-01502EXTEX OPERATING COMPANY------
242-165-01503EXTEX OPERATING COMPANY------