ZIMMER

Oil // district 2 // lease#4511

op: PETRA OLEUM CORP.

cum_oil

25k BBL

cum_gas

0 MCF

wells

5

production

1993-01 — 2026-03

peak_month

2007-03

-- production_history

cum_oil: 24,870 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

840 BBL/mo

Di (annual)

200.4%

b-factor

1.2

EUR

30,821 BBL

R-squared

0.598

type

hyperbolic

-- wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2PETRA OLEUM CORP.22,4002012-03-08
4PETRA OLEUM CORP.33,0492010-05-06
5PETRA OLEUM CORP.12,7302000-01-26
1 APETRO-LEWIS CORPORATION14,9111982-09-07
342-469-01276--------
EOF // data source: Texas Railroad Commission // 2026