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Concho Resources Inc. (NYSE: CXO) has agreed to acquire all the crude-oil and natural-gas assets of the Three Rivers Operating Co. and certain affiliated entities for $1 billion in cash, Concho announced Sunday.

First JPMorgan Chase & Co. lost an estimated $2 billion in derivatives trading, and now it has lost one of CEO Jamie Dimon's top lieutenants: Ina R. Drew, JPMorgan Chase's chief investment officer and a bank employee for three decades, will step down on Monday. Matt Zames will take over for Drew, Bloomberg News reported.

JPMorgan Chase & Co. (NYSE: JPM) CEO Jamie Dimon offered a mea culpa on NBC's Meet The Press Sunday, saying the mammoth money-center bank was dead wrong to dismiss concerns over a series of hedges that ended up costing the company $2 billion.

For months, Yahoo has been in crisis. Market share fell. CEO Carol Bartz was fired. A Chinese tycoon said he?d buy the company.

The Big Agriculture groups coming to Dow's defense have everything to gain from Enlist's regulatory approval.

Since hitting 52-week lows last October, U.S. financial-sector stocks have staged a strong comeback -- rising some 34 percent. Despite this uptick, they still look like bargains, at first blush.

The LinkedIn Corp. (NYSE: LNKD), the business-related social-networking company, considered buying online job-listings provider Monster Worldwide Inc. (NYSE: MWW), but decided against the purchase, according to Reuters. Meanwhile, the private-equity firm Silver Lake Partners continues to have interest.

Fitch Ratings on Friday downgraded JPMorgan Chase & Co. (NYSE: JPM), which just revealed at least $2 billion in losses on questionable trading. The downgrade came on the same day that a U.S. senator called for a Congressional probe of the giant bank and the head of the Securities and Exchange Commission confirmed that her agents are eyeing the money center's hedging activity.

U.S. Securities and Exchange Commission investigators are probably in the process of drafting subpoenas against JPMorgan Chase & Co. (NYSE: JPM), if they have not already filed them, regarding the bank's loss of $2 billion through proprietary trading, said ex-SEC New York Regional assistant director Joseph Dever.

China's announcement that construction was down and manufacturers bought less factory equipment in April drove oil prices down and caused concerns that the global economy was slowing down. These concerns were reflected in market activity.

Following Thursday's financial earthquake at JPMorgan Chase & Co., fingers are pointing to Bruno Michel Iksil, who recently boasted that he could walk on water -- suggesting the French trader's ego is as outsized as the nemesis in Melville's novel from which his nickname the White Whale originates. Whether or not Iksil's reputation will go from fearsome whale to Jonah after he's blamed for the storm and tossed overboard is not yet known.

U.S. Securities and Exchange Commission (SEC) regulators are monitoring JPMorgan Chase & Company (NYSE: JPM) following the disclosure that the bank lost $2 billion in bad hedging action carried out by the so-called Whale of London, SEC Chairwoman Mary Schapiro said Friday.

JP Morgan Chase and Co. (NYSE: JPM) shocked the markets Thursday by announcing it would be booking mammoth losses in the range of $3 billion this quarter as a result of a hedged bet gone bad. But what exactly was that bet?

Rather than deal with business, directors of Yahoo (Nasdaq: YHOO), the No. 3 search engine, have been busy all week in the ?resume embellishment? scandal that forced one director to quit and put the CEO under a cloud.

The Goldfield Corporation (NYSE Amex: GV), the U.S. southeast electric construction company, said Friday revenue nearly doubled in the quarter ended March 31 as construction activity increased.

The earnings calendar for the week ahead will be comparatively light, but a number of bellwether companies will be reporting results.

The Qatar Investment Authority (QIA) is on an investment spree, bulking up its holdings in several major companies including Royal Dutch Shell Plc (NYSE: RDS.A), Eni SpA (NYSE: E), and Xstrata PLC (London: XTA), and the sovereign fund has already taken a holding Total SA (NYSE: TOT) and is pursuing avenues to invest in Glencore International Plc (London: GLEN), sources reported Friday.

Stock index futures fell sharply on Thursday evening as JPMorgan Chase & Co stunned investors with news that its chief investment office had incurred significant mark-to-market losses that it said could easily get worse.

Shares of JPMorganChase (NYSE: JPM) plunged 8 percent Friday after disclosing it had lost at least $2 billion in credit default swap trading.

The battle for control of Yahoo (Nasdaq: YHOO), the No. 3 search engine, will be fought next Thursday, the company confirmed.

Freddie Mac (OTC: FMCC), the second-largest U.S. mortgage guarantor, said Thursday it was appointing Donald Layton, the former head of E*Trade as its CEO.