The hurdles facing Trump's planned strategic oil purchase

• That would involve a plan to purchase 78 million barrels, given that the reserve has a capacity of 713.5 million barrels and currently holds around 635 million.

Where it stands: The Energy Department said Friday it would "immediately initiate an expedited process" to begin purchasing oil.

But, but, but: The research firm ClearView Energy Partners notes that "funding remains unclear" and sees "political headwinds" in Congress to appropriating new money.

• However, their weekend note added that the administration could gain congressional permission to reallocate existing funds for some of the purchases. S&P Global Platts has more on that here.

What they're saying: Oil analyst Bob McNally, president of Rapidan Energy Group, tells the Washington Post that buying oil at low prices for the stockpile is a good idea.

• McNally, a former energy official in the President George W. Bush era, notes that "our economy remains vulnerable to supply disruptions anywhere in the world."

Go deeper: Trump to buy oil for nation’s strategic reserves