Oil barely garnered a mention from U.S. President Donald Trump during his glitzy visit to Saudi Arabia this week. But the black gold may explain why the trip went so smoothly.

Saudi Arabia is boosting oil output, pressuring U.S. shale producers and shaking markets. Here's how this move could impact breakeven prices, rig counts, and investors.

Saudi government officials ”haven’t said they’re going to crush the U.S. oil and gas industry, but it’s a foregone conclusion,” Sankey said in an interview. Meanwhile, “low oil prices is one of the things [Trump] can point to as a promise delivered.”