Maybe you've had major success during the spring time catching walleye. Is your game a little short during the summer? You may need to adjust your style on Oneida Lake. 

The Oneida Lake Association explains that during summer, walleyes tend to move to deeper sections of the lake. However, that doesn't mean they are always at the bottom.

Even though the walleyes are in the deeper areas they tend to be a little higher in the water column since that is where the bait is, not bottom oriented as they once were in the spring."

Try trolling stick baits or spoons with downriggers and/or leadcore line. They also recommend trolling deep diving crank baits off of inline planer boards is becoming very popular.