MARCELLUS/UTICA REGION: Ohio State students, faculty testify for, against on-campus natural gas plant; Plugged In Podcast: Kathryn Klaber on regulation in Pennsylvania; NATIONAL: More than 100 coal-fired plants have been replaced or converted to natural gas since 2011; US senators aim to ease pipeline permitting after latest Keystone XL setback; Indicator of oil/gas bankruptcy risk falls by half, contrary to negative ratings outlooks.