And welcome back to Power Lunch. Oil is on pace for its worst week since the end of June. Now, this comes as a White House official says a summit between President Trump and Russia's President Putin is tentatively scheduled for the end of next week.Today also marks Trump's deadline for Russia and Ukraine to end the war or face additional sanctions. Now, here to discuss all of this and the impact on energy is Helma Croft. She's managing director and global head of commodity strategy at RBC Capital Markets.Sh ...