Petroleum investigation, crude oil prices and extension of Cole pipe line act, hearings before subcommittee, 78th Congress, 1st session, pursuant to H. Res. 290 (76th Congress), H. Res. 15, H. Res. 118, and H. Res. 383 (77th Congress), and H. Res. 58 (78th Congress), resolutions relating to petroleum investigation in connection with national defense including petroleum pipe-line transportation to Atlantic seaboard and in Southeastern States, Apr. 13-Dec. 6, 1943.