A shekara ta 1926, kamfanin ya canza sunansa zuwa Standard Oil Co. na California (SOCAL). ta hanyar sharuddan rushewa na Standard Oil, da farko Standard na California zai iya amfani da sunan Standard kawai a cikin asalinsa na yanki na Pacific Coast jihohi, da Nevada da Arizona; a waje da wannan yanki, dole ne ya yi amfani da wani suna. A yau Chevron ne mai mallakar Standard Oil a cikin jihohi 16 a yammacin da kudu maso gabashin Amurka. Don kula da mallakar kamfanin, kamfanin ya mallaki kuma yana aiki da Standard Oil Co. (California), ya zama Chevron a cikin 1980, ya zama wani ɓangare na "Seven Sisters", wanda ya mamaye masana'antar man fetur ta duniya a farkon karni na 20.
ya sayar da yawancin kamfanonin Gulf, kuma ya sayar da wasu tashoshin Gulf da kuma mai tsabta a gabashin Amurka