Options Brief: Tesoro Corporation (TSO)

Shares of Tesoro Corporation TSO are higher on the session by 1.35%, trading at $21.80. Overall call volume is now running at 2.43x the daily average, with 48% of all calls traded being purchases on the offer. 12,841 contracts have traded on the session so far. Tesoro Corporation is an independent petroleum refiners and marketers in the United States with two operating segments: refining and retail.