 Areas of Tulsa west of the Arkansas River are called West Tulsa , and are marked by large parks , wilderness reserves , and large oil refineries . The northern tier of the city is home to OSU @-@ Tulsa , Gilcrease Museum , Tulsa International Airport , the Tulsa Zoo , the Tulsa Air and Space Museum , and the nation 's third @-@ largest municipal park , Mohawk Park . 
