▁American ▁Pet ro f ina ▁purchased ▁several ▁thousand ▁service ▁stations ▁from ▁Oklahoma - based ▁Cham pl in ▁Ref ining ▁Company ▁following ▁that ▁firm ' s ▁closing ▁of ▁its ▁En id , ▁Oklahoma ▁ref in ery . ▁The ▁Cham pl in ▁assets ▁were ▁re brand ed ▁as ▁F IN A ▁stations ▁in ▁several ▁Mid - Cont inent ▁states ▁including ▁Texas , ▁Oklahoma , ▁Kansas , ▁Neb r aska ▁and ▁Iowa ▁among ▁others . ▁ ▁Pet ro f ina ' s ▁U . S . ▁subs idi ary , ▁F ina ▁Inc ., ▁announced ▁that ▁it ▁would ▁move ▁its ▁headquarters ▁to ▁Houston ▁from ▁Pl ano , ▁Texas ▁in ▁ 2 0 0 0 . ▁F ina ▁Inc . ▁planned ▁to ▁occup y ▁ ▁in ▁the ▁World ▁Houston ▁Pla za ▁building , ▁near ▁George ▁Bush ▁Inter cont inental ▁Airport . ▁ ▁In ▁ 2 0 0 5 , ▁T OT AL ▁Pet ro chem ical s ▁USA , ▁Inc ., ▁moved ▁to ▁offices ▁in ▁dow nt own ▁Houston ▁at ▁ 1 2 0 1 ▁Louisiana ▁St . ▁ ▁T OT AL ▁Pet ro chem ical s ▁USA , ▁Inc . ▁has ▁retained ▁the ▁pet ro chem ical s ▁operations ▁of ▁the ▁former ▁F ina , ▁Inc ▁and ▁the ▁Port ▁Arthur , ▁Texas ▁ref in ery . ▁ ▁US ▁F IN A ▁assets ▁now ▁owned ▁by ▁AL ON ▁USA ▁Since ▁the ▁Total - P etro f ina ▁mer ger ▁in ▁ 1 9 9 9 , ▁all ▁of ▁F IN A ' s ▁former ▁market ing ▁assets