UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q MURPHY USA INC. (Exact name of registrant as specified in its charter) Delaware 46-2279221 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification No.) 200 Peach Street El Dorado, Arkansas 71730-5836 (Address of principal executive offices) (Zip Code) (Mark one) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended Septemb ...