NEW YORK (TheStreet) -- Petrobras  (PBR.A - Get Report) stock is retreating by 3.31% to $5.25 in late-afternoon trading on Monday, as lower oil prices weigh on shares of the Rio de Janeiro-based energy company.

Oil prices are slumping this afternoon after Genscape released a weekly report showing that oil inventories in Cushing, Okla. have increased by roughly 1.5 million barrels, the Wall Street Journal reports.

"The market will have to answer for that bloated storage situation," Robert Yawger, director of the futures division at brokerage Mizuho, told the Journal.

Today's drop in prices comes after the oil market rose by 5% last week to its highest level since early November, driven by indications of strong demand and optimism that the global supply glut is diminishing.

Crude oil (WTI) is sliding 2.15% to $42.79 per barrel and Brent crude is down by 1.11% to $44.61 per barrel.

Separately, TheStreet Ratings team rates the stock as a "sell" with a ratings score of D.

Petrobras's weaknesses include its disappointing return on equity, generally disappointing historical performance in the stock itself and generally high debt management risk.

You can view the full analysis from the report here: PBR.A

TheStreet Ratings objectively rated this stock according to its "risk-adjusted" total return prospect over a 12-month investment horizon. Not based on the news in any given day, the rating may differ from Jim Cramer's view or that of this article's author.