Parker (2-2) easily worked his way through baseball's highest-scoring offence in his ninth career start before Michael Young grounded a single through the middle for Texas' first hit leading off the eighth.
Parker got a warm ovation from the crowd of 10,120 and then recovered to get out of the inning on two more pitches — a popup by Nelson Cruz and an inning-ending double play from David Murphy. That ended the night for Parker, who allowed one hit, walked three and struck out six.
Inge started the scoring in the big inning with a three-run homer off Scott Feldman (0-4) and capped it with an RBI single as the A's normally meek bats broke through with a big night. Kila Ka'aihue added a two-run homer for the A's, who had lost 10 of 11.
TWINS 10, ROYALS 7
KANSAS CITY, Mo. (AP) — Justin Morneau and Josh Willingham each hit two-run homers, Trevor Plouffe also went deep and Minnesota held off the Royals.
Cole De Vries (1-1) lasted five shaky innings to pick up his first major league victory in his third career start. He got plenty of help from Jamey Carroll, who reached base four times with two RBIs, and Ben Revere, who also drove in a pair of runs.
The game was tied 4-all in the fifth when Morneau belted his homer off Will Smith (1-2), also making his third big league start.
MARINERS 8, ANGELS 6
ANAHEIM, Calif. (AP) — Munenori Kawasaki had a three-run double and John Jaso had three hits, leading the Mariners to a victory over the Angels.
Mariners starter Jason Vargas (7-4) gave up four runs and nine hits in 5 2-3 innings. He struck out a season-best eight.
Mike Trout had a career-high four hits and a sacrifice fly and Kendrys Morales hit two home runs for the Angels. Angels manager Mike Scioscia became the ninth manager in AL history to manage 2,000 games with one club.
Angels starter Ervin Santana (2-7) lasted a season-low 4 2-3 innings, and gave up seven runs and eight hits. He walked six and struck out only one.