Look up the operator history for American... and then look at the lease numbers for those leases... http://www.rrc.state.tx.us/meetings/masterdefault/og-mas-def02-09-10.pdf http://www.rrc.state.tx.us/meetings/masterdefault/2009/og-mas-def04-28-09.pdf http://www.rrc.state.tx.us/meetings/masterdefault/2009/og-masdef-031109.pdf http://www.rrc.state.tx.us/meetings/masterdefault/og-mas-def10-22-09.pdf http://www.rrc.state.tx.us/meetings/ogpfd/9-48941-DEF.pdf http://www.rrc.state.tx.us/meetings/ogpfd/9-53792-DEF.pdf http://www.rrc.state.tx.us/meetings/ogpfd/9-55529-DEF.pdf http://www.rrc.state.tx.us/meetings/ogpfd/9-57793-DEF.pdf http://www.rrc.state.tx.us/meetings/ogpfd/9-62521-DEF.pdf 810580 SPRINGFIELD OIL SERVICES, INC. 550 MAMARONECK AVE SUITE 503A HARRISON NY 10528 (914) 315-6812 cp corp systems resident agent Springfield Oil Inc 550 Mamaroneck Ave Harrison, NY (914) 315-6812