FAQ

Our stock is traded on the NASDAQ Global Market under the symbol GPOR.

No, you will need to contact a licensed stock broker or use an online trading account.

Through a licensed stock broker or by using an online trading account.

Through your brokerage account or by contacting our transfer agent.

February 1998 and listed on NASDAQ February 2006.

3001 Quail Springs Parkway
Oklahoma City, OK 73134

Computershare Trust Company
250 Royall Street
Canton, MA 02021

Toll Free number for shareholders: 800-962-4284
Outside of US and Canada: 781-575-3120