Cooking Ribeye steaks on a gas grill takes around 12 minutes but the thicker the Ribeye the more time it will take to cook but it should take no more than 15 to 16 minutes.
To cook Ribeye on your gas grill preheat the grill and set it on medium high and put the Ribeye steaks on the grill and cook over direct heat for 6 to 7 minutes on each side.
Cook one side for 6 to 7 minutes and then flip the steaks over and let the other side of the steak cook for 6 to 7 minutes or until fully cooked.
You can add some seasoning to the steaks before grilling them if you like although it's not required.