* Goldman cuts 2015, 2016 outlook; Commerzbank (XETRA:CBKG) also pares forecast
* Oil prices will be "lower for even longer", Goldman says
* IEA counters bearish forecast with demand growth expectations (New throughout, with settlement prices for crude)
By Barani Krishnan
NEW YORK, Sept 11 (Reuters) - Crude futures fell 2 percent or more on Friday after influential Wall Street trader Goldman Sachs (NYSE:GS) cut its outlook on oil, but positive sentiment from rebounding U.S. stock prices and less drilling for oil helped the market pare losses.
Goldman lowered its 2016 forecast for U.S. crude to $45 a barrel from $57 previously, and Brent to $49.50 from $62, citing oversupply and concerns over China's economy.
Germany's Commerzbank also cut its oil outlook, joining a long list of banks that have downgraded crude price projections on supply glut concerns.
"The oil market is even more oversupplied than we had expected and we forecast this surplus to persist in 2016," Goldman said in a note entitled "Lower for even longer."
Citing "operational stress" as a growing downside risk, the Wall Street firm said crude could even fall to near $20 a barrel. "While not our base case, the potential for oil prices to fall to such levels ... is becoming greater as storage continues to fill."
Global benchmarks for crude oil fell more than 3 percent initially on the Goldman announcement, then pared losses as stocks on Wall Street rebounded .SPX and news of a lower U.S. oil rig count emerged. But toward the close, they headed lower again before finishing off their lows.
U.S. crude CLc1 settled down $1.29, or 2.8 percent, at $44.63 a barrel.
Brent LCOc1 , the global benchmark for oil, closed down 75 cents, or 1.5 percent, at $48.59.
U.S. stocks were off their lows in afternoon trade ahead of a Federal Reserve meeting next week that could decide on an interest rate hike. Equity markets have provided direction to oil since the end of August as investors grappled with mixed fundamentals for crude.
Oil services firm Baker Hughes (NYSE:BHI) said U.S. drillers idled 10 rigs this week, cutting activity for a second week in a row in sign that price declines were discouraging producers.
Crude prices have more than halved over the past year, with Brent tumbling from nearly $120 a barrel in the middle of 2014 to below $43 last month. Prices collapsed as a global glut of crude pushed commercial and government inventories to all-time highs.
Analysts say the market is rebalancing, but high stocks will keep weighing on prices into next year.
Investors shrugged off a report from the Paris-based International Energy Agency, which suggested that OPEC was successfully defending market share by keeping output steady in the face of lower prices.