ZIMMER, JOHN

Gas // district 2 // lease#166256

op: PETRA OLEUM CORP.

cum_oil

0 BBL

cum_gas

3k MCF

wells

1

production

1997-11 — 2026-03

peak_month

1997-12

-- production_history

cum_oil: 0 BBL cum_gas: 2,797 MCF

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
8GRAHAM ROYALTY, LTD.24,5131997-11-17
EOF // data source: Texas Railroad Commission // 2026