SAMPSON-MUELLER UNIT

Oil · District 03 · Lease #22537

Operator: MAGNOLIA OIL & GAS OPERATING LLC

Cum Oil

369k BBL

Cum Gas

1.8M MCF

casinghead

Wells

3

Production

1994-08 — 2026-04

Peak Month

2003-10

Production History

Cum Oil: 368,941 BBL Cum Gas: 1,792,231 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

9,670 BBL/mo

Di (annual)

86.0%

b-factor

0.6

EUR

299,783 BBL

R-squared

0.611

type

hyperbolic

Operator History (from monthly production reports)

2025-08 — 2026-07 MAGNOLIA OIL & GAS OPERATING LLC 12 mo
2019-04 — 2025-07 DALLAS PETROLEUM GROUP, LLC 76 mo
1994-08 — 2019-03 BROWNING OIL COMPANY, INC. 296 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2MAGNOLIA OIL & GAS OPERATING LLC211,0002003-08-01
1MAGNOLIA OIL & GAS OPERATING LLC111,4001994-06-21
3MAGNOLIA OIL & GAS OPERATING LLC211,0001983-09-20