(Bloomberg) —Asian stocks rose as energy shares rallied on expectations major crude producers will work to tighten output, while equities in Japan gained as the yen weakened for a second day.

The MSCI Asia Pacific Index added 0.1 percent to 140.70 as of 9:06 a.m. in Tokyo. U.S. crude was near its highest price in more than a year after Saudi Arabia expressed optimism OPEC will be able to cement a deal to curb production, and Russia said it would back such an accord.

“The fact that Russia has shown willingness to cooperate with OPEC is a tailwind for oil prices going forward,” said Toshihiko Matsuno, a senior strategist at SMBC Friend Securities Co. in Tokyo. “In the short-term, it’s positive for oil and mining shares, and it’s also improved market sentiment. With secretary Clinton taking the upper hand at the debate, negative factors have been scaled back a little for the markets.”

Futures on the S&P 500 Index were little changed. The U.S. equity benchmark index gained 0.5 percent on Monday, on speculation that Republican candidate Donald Trump’s performance in the second U.S. presidential debate wasn’t strong enough to boost his chances of winning against Hillary Clinton.

Japan’s Topix index was 0.5 percent higher as markets resumed trade following a national holiday Monday. The Bank of Japan still has room to expand its monetary stimulus and doesn’t intend to reduce its bond-buying program soon, Governor Haruhiko Kuroda said in an interview over the weekend. The yen traded at 103.83 to the dollar, after weakening 0.7 percent Monday. The currency jumped 1 percent against the greenback on Friday.

South Korea’s Kospi index fell less than 0.1 percent as Samsung Electronics Co. dropped 4.1 percent. The company said its retail partners should stop sales and exchanges of its Galaxy Note 7 smartphone, which was recalled in the U.S. last month after reports the handsets were catching fire.

Australia’s S&P/ASX 200 Index added 0.3 percent, with energy companies soaring 1.9 percent as a group. New Zealand’s S&P/NZX 50 Index increased 0.5 percent, climbing for the first time in six days.

Shares in Hong Kong and China have yet to start trading. Markets in Hong Kong and Taiwan were closed Monday, while the Shanghai Composite Index gained 1.5 percent, led by energy producers. Futures on Hong Kong’s Hang Seng Index were down 0.2 percent in the most recent trading.