These are the stocks posting the largest moves before the bell.Market Insiderread more
An oil processing facility at Abqaiq and the nearby Khurais oil field was attacked on Saturday.Marketsread more
"There is reason to believe that we know the culprit," Trump said in a post on Twitter.Politicsread more
An extended Saudi oil outage could push Brent crude prices north of $75 per barrel, Goldman Sachs warned clients.Marketsread more
As investors worry about oil supply, airline and cruise ship stocks are getting hit on Monday, while some energy stocks are shooting upward.Marketsread more
The trucking industry is worth hundreds of billions of dollars per year. Uber is going after this market with Uber Freight, an online platform that matches truckers with...Technologyread more
Brent crude surged by as much as 19.5% to reach $71.95 per barrel on Monday, the biggest intra-day jump since the Gulf War in 1991.Oilread more
U.S. stock futures are under pressure Monday as oil prices spike after Saturday's coordinated strikes on key Saudi oil interests.Marketsread more
In the past few weeks, the S&P 500 has waged a 6% rally, pulling within 1% of its late-July record high by Friday's close.Trading Nationread more
The strike, depending on its length, could easily cost GM hundreds of millions of dollars. The last time the union declared a strike at GM was in 2007.Autosread more
Saudi Aramco has 35-40 days of supply to meet contractual obligations, a source close to the matter told CNBC.Energyread more
Senate Democrats are drafting legislation to raise the nation's debt limit without the type of unrelated conditions Republicans have said they intend to demand, officials said Monday, as the White House signaled it would accept even a brief extension in borrowing authority to prevent an unprecedented default.
The details of the emerging measure were unclear, and it was not known when it would be unveiled.
Republicans have said they will seek long-term deficit cuts or reforms to benefit programs and perhaps a wholesale rollback in environmental rules as the price for raising the current $16.7 trillion debt limit. President Barack Obama has ruled out negotiations on the measure, although he has said he is willing to discuss fiscal and other issues with the GOP once the partial government shutdown is over and the Treasury is free to borrow again.
Gene Sperling, a senior Obama economic adviser, was pressed on whether he would rule out a two- or three-week extension on increasing the nation's $16.7 trillion debt limit. Treasury Secretary Jack Lew has warned that on Oct. 17, he exhausts the bookkeeping maneuvers he has been using to keep borrowing.
(Read more: Jack Lew's dilemma: Which bills to pay and when)
"There's no question that the longer the debt limit is extended, the greater economic certainty there will be in our economy which would be better for jobs, growth and investment," Sperling told a breakfast sponsored by the newspaper Politico. "That said, it is the responsibility of Congress to decide how long and how often they want to vote on doing that."
Economists say a default could trigger a financial crisis and recession that would echo 2008—or worse. The 2008 financial crisis plunged the country into the worst recession since the Great Depression of the 1930s.
(Read more: So what if there's a default? 5 things to remember)
Sperling reiterated Obama's vow not to negotiate on the debt because it would sanction the threat of default as a bargaining chip and increase the chance of default in the future.
Seeking to maintain pressure on Republicans, Obama made a previously unannounced visit to the Federal Emergency Management Agency headquarters Monday to draw attention to a government agency that has had to furlough 86 percent of its workforce as part of the partial shutdown.
Obama thanked FEMA employees for their work preparing for Tropical Storm Karen, which dissipated Sunday after posing a threat to the Gulf Coast.
(Related video: President Obama visits FEMA)
"We dodged a bullet there," Obama said.
FEMA recalled 200 furloughed workers last week to help prepare for the storm. Obama said that now that the storm has weakened, at least 100 of those workers will have to return to furloughed status.
"That's no way of doing business," the president said.
The Republican-controlled House last week passed legislation that would continue to direct money to FEMA during the shutdown. But Democrats and the White House say they do not want to respond to the impasse in a piecemeal fashion.
(Read more: Debt ceilingflashback: See who plunged last time)
A defiant House Speaker John Boehner has insisted that Obama must negotiate on changes to the 3-year-old health care law and spending cuts if he wants to end the shutdown and avert a default.
"We're not going to pass a clean debt limit increase," the Ohio Republican said in a television interview Sunday. "I told the president, there's no way we're going to pass one. The votes are not in the House to pass a clean debt limit, and the president is risking default by not having a conversation with us."
(Read more: Six dangerous myths about the debt ceiling)
The uncompromising talk rattled financial markets early Monday as stocks slumped. China, which holds $1.277 trillion in U.S. Treasury bonds and stands as the United States' biggest foreign creditor, urged that all efforts are made to avoid a default.
Among congressional leaders, however, animosity marked the stalemate and resolution seemed elusive.
A statement from Senate Majority Leader Harry Reid, D-Nev., accused Boehner of a credibility problem and called on him to allow a vote on a straightforward bill to re-open the government.
"There is now a consistent pattern of Speaker Boehner saying things that fly in the face of the facts or stand at odds with his past actions," said Adam Jentleson, a spokesman for Reid. "Americans across the country are suffering because Speaker Boehner refuses to come to grips with reality."
(Related video: Can Wall St. befriend the White House?)
In response, Michael Steel, a spokesman for Boehner, said it was "time for Senate Democrats to stow their faux outrage and deal with the problems at hand. The federal government is shut down because Democrats refuse to negotiate, and the debt limit is right around the corner."
Boehner said Sunday that he lacks the votes "to pass a clean CR," or continuing resolution, a reference to the temporary spending bill without conditions that would keep the government operating.
Lew has warned that the budget brinkmanship was "playing with fire" and implored Congress to pass legislation to re-open the government and increase the nation's debt limit.
The shutdown has pushed hundreds of thousands of workers off the job, closed national parks and museums and stopped an array of government services.
(Related video: US headed for euro-zone doghouse?)
The one bright spot on Monday is a significant chunk of the furloughed federal workforce is headed back to work. Defense Secretary Chuck Hagel ordered nearly 350,000 back on the job, basing his decision on a Pentagon interpretation of a law called the Pay Our Military Act.
Democrats insist that Republicans could easily open the government if Boehner simply allows a vote on the emergency spending bill. Democrats argue that their 200 members in the House plus close to two dozen pragmatic Republicans would back a so-called clean bill, but the speaker remains hamstrung by his tea party-strong GOP caucus.
"Let me issue him a friendly challenge. Put it on the floor Monday or Tuesday. I would bet there are the votes to pass it," said Sen. Chuck Schumer, D-N.Y.
In a series of Sunday television appearances, Lew said that while Treasury expects to have $30 billion of cash on hand on Oct. 17, that money will be quickly exhausted in paying incoming bills given that the government's payments can run up to $60 billion on a single day.
Treasury issued a report on Thursday detailing in stark terms what could happen if the government actually defaulted on its obligations to service the national debt, with credit markets frozen, the dollar in free fall and U.S. interest rates skyrocketing.
—By The Associated Press.