The United States Oil Fund (NYSEArca: USO), which tracks West Texas Intermediate crude oil futures, and the United States Brent Oil Fund (NYSEArca: BNO), which tracks Brent crude oil futures, were hammered last week.

For example, USO, one of the most heavily traded commodities exchange traded products of any stripe, slid more than 5%, but some market observers believe oil’s most recent plunge is not justified by poor fundamentals. In fact, Goldman Sachs opines that oil fundamentals are actually decent.

“Goldman is reiterating its confidence in oil at a time when investors are fretting over whether U.S. production, which has climbed to the highest since August 2015, will undermine curbs by the Organization of Petroleum Exporting Countries and its allies,” reports Serene Cheong for Bloomberg. “After posting three straight weekly gains on expectations OPEC will extend its supply cuts, crude is now set for a drop this week following a decline of more than 3.5 percent on Wednesday.”

Oil traders are concerned over how fast U.S. shale oil producers will increase production to capture the rising prices. Rig counts have recently ticked higher and with credit and earnings issues improving for some U.S. shale drillers, those companies may seize the opportunity to exploit higher pricing in the near-term.

“Goldman also believes gasoline demand is probably being understated, “with the more accurate ethanol implied demand metric pointing instead to resilient gasoline demand growth, while distillate demand remains strong,” according to the report,” reports Bloomberg.

While OPEC is cutting back to alleviate price pressures, U.S. fracking companies could jump to capitalize on the windfall as crude oil prices jump back above $50 per barrel – according to some estimates, shale oil producers can get by with oil at just over $50 per barrel due to advancements in technology and drilling techniques that have helped cut down costs.

Active traders now have some new choices to profit from big moves in crude prices. ProShares rolled out the ProShares UltraPro 3x Crude Oil ETF (NYSEArca: OILU) and ProShares UltraPro 3x Short Crude Oil ETF (NYSEArca: OILD) debuted on Monday.

ProShares also offers 2x and -2x crude oil ETF plays. The ProShares Ultra Bloomberg Crude Oil (NYSEArca: UCO) takes two times or 200% daily performance of WTI crude oil and the ProShares UltraShort Bloomberg Crude Oil (NYSEArca: SCO) tries to reflect the two times inverse or -200% daily performance of WTI crude oil.

For more information on the crude oil market, visit our oil category.