ULLRICH, RICHARD C.

Oil · District 03 · Lease #15218

Operator: R&R RESOURCES CORPORATION

Cum Oil

31k BBL

Cum Gas

181k MCF

casinghead

Wells

2

Production

1993-01 — 2026-04

Peak Month

2002-06

Production History

Cum Oil: 31,383 BBL Cum Gas: 181,149 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

764 BBL/mo

Di (annual)

44.7%

b-factor

0.2

EUR

25,485 BBL

R-squared

0.348

type

hyperbolic

Operator History (from monthly production reports)

2025-06 — 2026-07 MAGNOLIA OIL & GAS OPERATING LLC 14 mo
2008-07 — 2025-05 LEEXUS OIL LLC 203 mo
2006-01 — 2008-06 LEEXUS OIL & GAS L.L.P. 30 mo
2002-02 — 2005-12 R&R RESOURCES CORPORATION 47 mo
2000-11 — 2002-01 LEEXUS OIL & GAS L.L.P. 15 mo
1993-01 — 2000-10 HILLIN-SIMON OIL COMPANY 94 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1MAGNOLIA OIL & GAS OPERATING LLC412,0002002-02-19
1HMAGNOLIA OIL & GAS OPERATING LLC412,0002002-02-19