U.S. options in the Ukrainian crisis are limited but potentially effective, U.S. Sen. Jim Inhofe said Friday in Tulsa.

"We're not going to do any boots on the ground, for a number of reasons, the main reason being we don't have the resources," Inhofe told the Tulsa World.

What the U.S. could do, said Inhofe, is deploy Aegis-equipped ships to the Baltic and Black seas, "put some F-22s in Poland," and begin large-scale sales of natural gas to western Europe.

Inhofe said the F-22s and the Aegis missiles wouldn't be used but would "show (Russia) we still have a military and are willing to stand up to them."

Exporting natural gas to the European Union, said Inhofe, would make EU intervention easier because those countries depend so heavily on Russian natural gas.

Inhofe said he would not support direct U.S. involvement in Ukraine without European involvement.

Ukraine and much of Europe and southwest Asia have been in turmoil since Russian troops began moving into Crimea, a peninsula on the Black Sea, in late February.