FEDERAL ROYALTY CO., ETAL -A-

Oil · District 01 · Lease #2084

Operator: PETROSAURUS, INC.

Fields: SOMERSET

Cum Oil

11k BBL

Cum Gas

21 MCF

casinghead

Wells

11

Production

1993-01 — 2021-08

Peak Month

1996-03

Production History

Cum Oil: 10,512 BBL Cum Gas: 21 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

75 BBL/mo

Di (annual)

20.6%

b-factor

0.7

EUR

8,603 BBL

R-squared

0.416

type

hyperbolic

Operator History (from monthly production reports)

2013-09 — 2026-07 PETROSAURUS, INC. 155 mo
1995-02 — 2013-08 AMINEX USA, INC. 223 mo
1993-10 — 1995-01 CASPEN OPERATING COMPANY 16 mo
1993-01 — 1993-09 DEVON ENERGY CORPORATION(NEVADA) 9 mo

Wells (11)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
12PETROSAURUS INC.11,6501992-11-24
13PETROSAURUS INC.11,6501992-11-24
14ATPETROSAURUS INC.12,1501992-11-24
11PETROSAURUS INC.11,6401981-01-27
10PETROSAURUS INC.11,6101980-01-09
9PETROSAURUS INC.11,5901980-01-09
7WPETROSAURUS INC.11,5751979-09-19
8WPETROSAURUS INC.11,5001979-09-19
142-013-00141PETROSAURUS INC.------
242-013-00138PETROSAURUS INC.------
442-013-00150PETROSAURUS INC.------