Athletics 9, Twins 4: Derek Norris homered and drove in five runs while Josh Donaldson collected three hits and two RBIs as host Oakland extended its winning streak against Minnesota to 12 games.Stephen Vogt also went deep and No. 9 hitter Eric Sogard walked four times for the first-place Athletics, who moved 4 1/2 games ahead of the Los Angeles Angels in the American League West. Jeff Samardzija (5-8) allowed two runs and seven hits over six innings as Oakland improved to 6-0 versus the Twins this season.Trevor Plouffe drove in a pair of runs and Jordan Schafer went 2-for-3 with an RBI for Minnesota, which has lost four in a row. Trevor May (0-1) lasted only two innings in his major-league debut, surrendering four runs and three hits while issuing seven walks.The Twins wasted little time getting on the board as Brian Dozier doubled with one out in the first inning and Plouffe followed with an RBI single. Oakland answered quickly as Norris drew a bases-loaded walk in the bottom half, and May issued five free passes in the second - including another to Norris with three on base - while also yielding a two-run single by Donaldson as the Athletics took a 4-1 lead.Plouffe got the Twins within two with an RBI groundout in the fifth, but Vogt launched a two-run shot off Samuel Deduno in the bottom of the frame to make it 6-2. After driving in two runs without making contact, Norris connected against Deduno in the sixth for a three-run homer before Schafer and Dozier each had an RBI in the eighth to make the outcome a bit more respectable.GAME NOTEBOOK: Norris recorded his first multi-RBI performance since June 17, when he also drove in five runs against Texas. He collected a career-high six RBIs on May 11 versus Washington. ... Donaldson extended his hitting streak against Minnesota to 16 games. ... Oakland RHP Dan Otero yielded two runs in the eighth, ending an Oakland-record 30-inning scoreless streak by Athletics relievers. ... Oakland has outscored Minnesota 39-17 this season.