Although we don't believe in timing the market or panicking over market movements, we do like to keep an eye on big changes -- just in case they're material to our investing thesis.

What: Shares of Sanchez Energy Corp (NYSE: SN) jumped as much as 19.5% after announcing an acquisition.

So what: Sanchez is buying 106,000 net acres of land in the Eagle Ford shale from Royal Dutch Shell (RDS.A) for $639 million in cash. The new assets will add 60 million barrels of oil equivalent to proved reserves and 24,000 barrels of oil equivalent per day in production.  

Now what: There are 200 identified low risk and high rate of return locations and another 800 potential sites in the works. The acquisition will be paid for with $950 million in debt financing and is also expected to add to cash flow per share immediately. Investors are cheering the added exposure to the Eagle Ford, which is proving to be a valuable location for companies drilling in the U.S.