OAKLAND -- The Warriors finally played a close game at home and, boy, was it a doozy.

Andre Iguodala's turnaround jumper at the buzzer not only gave the Warriors a 116-115 win over Oklahoma City but also gave them their first win over a Western Conference contender. It spared them from the doubt that surely would've followed a gut-punch of a loss.

Golden State blew a 14-point fourth-quarter lead. And it looked as if Oklahoma City guard Russell Westbrook had given the Warriors their first home loss with a pull-up 29-footer. He yelled after holstering his imaginary guns, his 3-pointer putting the Warriors down a point with 2.3 seconds left.

"Huge," Klay Thompson said. "We needed a signature win like this. We hadn't gotten one against a marquee team like this."

Golden State Warriors vs. Oaklahoma Thunder at Oracle Arena Nov. 14, 2013.
Golden State Warriors' Klay Thompson (11) guards Oklahoma City Thunder's Kevin Durant (35) in the second quarter of their game at Oracle Arena in Oakland, Calif. on Thursday, Nov. 14, 2013. (Jose Carlos Fajardo/Bay Area New)

Oddly, the Warriors didn't turn to their best scorer. Stephen Curry, who finished with 22 points and nine assists, drew the Thunder's attention to the far sideline. Thompson, who knocked down six 3-pointers en route to 27 points, was the inbounder, and David Lee, who also had 20, set the screen.

Warriors coach Mark Jackson said the play was for Iguodala to get it on the inbounds and hand off to Thompson if the option was there. But Iguodala saw an opening when Oklahoma City jumped the play. Instead, he cut toward the baseline and took the pass from Thompson.

Instead of taking it to the rim, Iguodala went to a shot he's worked on for years. He caught it, turned, elevated and hoisted over the Thunder's Thabo Sefolosha. Game.

It was Iguodala's fourth career buzzer-beater. That's tied for the most in the NBA since the 2004-05 season with Kobe Bryant, Dwyane Wade, Paul Pierce and Gilbert Arenas.

"We have the luxury of having weapons on the floor," Jackson said of his decision to go to Iguodala, knowing the Thunder would just trap Curry.

"At any given time, Coach is going to call your number," Iguodala said after totaling 14 points and nine assists. "That's one thing I've learned from him. That's the reason you see so many guys playing with so much confidence."

It looked for a moment as if the Warriors were on their way to a fourth consecutive double-digit home win. Golden State opened the fourth quarter with five straight points. Draymond Green's layup had the home team up 100-86. The Thunder, which played at the Clippers on Wednesday night, appeared to be tiring.

After a layup by Lee, the Warriors led 108-95 with just over six minutes left in the game. But Golden State went on a four-minute drought, more than a big enough window to let the Thunder back in the game.

A 3-pointer by Kevin Durant cut the Warriors' lead to eight with 5:30 left. A three-point play by Serge Ibaka, who totaled 27 points and 13 rebounds, trimmed it to five at the 4:15 mark. A wide-open 3-pointer by Sefolosha cut it to 109-106. Just like that, it was a nail-biter.

A fast-break three-point play by Thompson put Golden State up 112-106 with 2:14 left. After four straight free throws by Oklahoma City, Thompson drilled a step-back jumper over Westbrook to give the Warriors a 114-110 lead inside of a minute left.

But Thunder guard Reggie Jackson answered with a driving layup. And after Curry missed his dagger 3-pointer, Westbrook nailed his.

It looked as if the Warriors had let one get away. They were out-rebounded by 17, gave up 51.3 percent shooting and were doubled up on the free-throw line, but this still felt like a game they'd blown. Jackson described the huddle after Westbrook's 3 as dark.

But that's why Golden State went and acquired Iguodala. It needed another guy who could make a play. Thursday, he came through.

"That's why Dre was such a big acquisition for us," Curry said. "He has a history of making big shots and playing well late in games. He showed why he's so important to our future and where we're trying to go."

Saturday's game

Utah (1-8) at Warriors (6-3), 7:30 p.m. CSNBA