Portales (pôrtăl`ĭs), city (1990 pop. 10,690), seat of Roosevelt co., E N.Mex., near the Tex. line; inc. 1910. It is the trade and processing center of an agricultural area. There is food processing, printing and publishing, and the manufacture of machinery, furniture, building products, and feeds. Oil wells are in the vicinity. Eastern New Mexico Univ. is in Portales. Cannon Air Force Base is nearby.