Guided ion beam mass spectrometry is used to investigate the kinetic energy dependence of the bimolecular reactions of CO2 and CO with Mo+, MoO+, and MoO2+, To obtain a more complete understanding of these systems, we probe MoO2+ and the intermediates, Mo(CO2)(+), OMo(CO)(+), OMo(CO2)(+), and O2Mo(CO)(+), by collisional activation experiments with Xe. Thermochemical analyses of the reaction cross sections obtained in this study yield (in eV) D-0(Mo+-CO2) = 0.51 +/- 0.07, D-0(OMo+-CO2) = 0.77 +/- 0.03, D-0(OMo+-CO) = 0.80 +/- 0.08, D-0(O2Mo+-CO) = 0.92 +/- 0.17, and D-0(OMo+-O) = 5.57 +/- 0.14 eV. Additional features in some reaction cross sections are assigned to the formation of excited electronic states of the products, thereby allowing a speculative measurement of excitation energies for states of MoO+ and MoO2+.