Carbon K-shell x-ray and Auger-electron-production cross sections are reported for 0.6 -2.0-MeV protons incident on CH4 (methane), C2H2 (acetylene), n-C4Hl0 (normal butane), i-C4Hl0 (isobutane), C6H6 (benzene), CO, and CO2. A variable-geometry end-window proportional counter with an alternate procedure for the determination of its transmission was used in collection of the x-ray data. A constant-energy-mode~/4 parallel-plate electrostatic analyzer served in the detection of Auger elec-