The East Oregonian (EO) is a daily newspaper published in Pendleton, Oregon, United States and covering Umatilla and Morrow counties.[3] The newspaper was established in 1875 by M. P. Bull, as a weekly.[5][6] In 1882, C. S. "Sam" Jackson purchased the EO.[6][7] Within a year it had become a semiweekly,[6] and in 1888, the paper was published every day except Sunday.[7] Jackson went on to become the publisher of the Oregon Journal in Portland.[6][7]

The newspaper is owned by EO Media Group, which prior to January 2013 was named the East Oregonian Publishing Company.[3] As of 2013, the paper is published Tuesday through Saturday mornings and has a circulation of 7,014.[8] The paper maintains a bureau in Hermiston.[3] The EO is the newspaper of record for Umatilla County.[9]

East Oregonian Publishing Company

In addition to the East Oregonian, EO Media Group (formerly the East Oregonian Publishing Company) publishes the Blue Mountain Eagle, The Hermiston Herald, and the Wallowa County Chieftain in Eastern Oregon.

The company also owns The Daily Astorian, the Seaside Signal,[11] the Capital Press, Oregon Coast Today (Lincoln City, Oregon), and the Chinook Observer (Long Beach, Washington).