Oil prices see-sawed on Tuesday as investors fretted over tight global supplies after Libya halted some exports and as factories in Shanghai prepared to reopen post a COVID-19 shutdown, easing some demand worries. Brent crude was down 26 cents, or 0.23%, to $112.90 a barrel at 0643 GMT, after rising more than $1 to $114.21 earlier in the session. U.S. West Texas Intermediate crude fell 45 cents, or 0.42%, to $107.76 a barrel, after rising to $108.92 earlier. Prices came under pressure with the dollar trading at a fresh two-year high. A firmer greenback makes commodities priced in dollars more expensive […]