Tokyo stocks ended practically flat Wednesday as a rise in crude oil prices lifting energy-related issues were offset by investors selling after a weak lead from Wall Street overnight.

The 225-issue Nikkei Stock Average gained 18.52 points, or 0.08 percent, from Tuesday to close the day at 22,911.21.

The broader Topix index of all First Section issues on the Tokyo Stock Exchange, meanwhile, added 2.78 points, or 0.15 percent, to finish the day at 1,829.79.

Oil and coal product, and mining-linked issues comprised those that gained the most. Rubber product and food issues, meanwhile, led the day's notable decliners.