East Oregonian
 The East Oregonian (EO) is a daily newspaper published in Pendleton Oregon United States and covering Umatilla and Morrow counties. The newspaper was established in 1875 by M. P. Bull as a weekly. In 1882 C. S. Sam Jackson purchased the EO. Within a year it had become a semiweekly and in 1888 the paper was published every day except Sunday.