WorldOil Oil veteran Andy Hall said to brief OPEC on U.S. shale Andy Hall, the veteran crude trader who closed his hedge fund this year, will brief OPEC officials on the outlook for U.S. shale oil, according to a copy of the agenda seen by Bloomberg News. WTI holds near $56/bbl after surging on Saudi cut-extension plea Oil held near $56/bbl after surging the most in almost two weeks as Saudi Arabia’s energy minister said OPEC should announce an extension to supply cuts when it meets at the end of the month. Investors key on geopolitics over crude in Saudi Arabia Investors in Saudi Arabia’s stock market are more concerned with political headlines coming out of Riyadh than oil prices. Oil short-sellers return as doubts loom on OPEC's horizon After bullish bets on Brent crude hit a record and futures surged to two-year highs, hedge funds are pulling back with a sense that the rally reached its limit for now. Wagers on lower prices rose by the most since June as Middle East tensions took a backseat, while uncertainty looms over Saudi Arabia’s push to extend OPEC’s output curbs this month. Oil climbs as Saudi Arabia seeks to dispel doubts over Russia Oil climbed, paring losses earlier this week, as Saudi Arabia moved to dispel doubts over Russia’s readiness to extend output curbs. Saudi Arabia says OPEC should extend cuts in meeting this month Saudi Arabia’s Energy Minister said OPEC and its allies should announce an extension of their output curbs when they gather at the end of this month. Sonangol's ex-chair said to leave $2 billion in reserves Isabel dos Santos, Africa’s richest woman, said Sonangol will be left with a financial reserve of $2 billion after she leaves as chair of Angola’s state-owned oil company. Oil trades near $55 as investors wait for clarity on OPEC action Oil slid toward $55/bbl as traders who were once certain OPEC and Russia would extend their output cuts beyond March aren’t so sure anymore. Oil retreats as IEA casts dark cloud over 2018 market outlook Crude took a step back now that 2018 isn’t looking so hot anymore. U.S. to dominate oil markets after biggest boom in world history The U.S. will be a dominant force in global oil and gas markets for many years to come as the shale boom becomes the biggest supply surge in history, the International Energy Agency predicted.