Benzinga's Rumors and Movers

A number of stocks are making huge moves on Thursday based on rumors and market speculation. Among them are Range Resources

, AOL

, SINA Corp.

and Walter Energy

.

Shares have surged nearly 10% to $69.03 on rumors that Royal Dutch Shell

may be interested in acquiring the independent energy company. Range Resources, which owns some very valuable shale assets, has been a consistent target of takeout rumors and the shares have been very volatile in recent months.

- A Reuters

today revealed that AOL's CEO Tim Armstrong has been pitching large shareholders on the merits of a takeover by Yahoo

. The stock has surged 7.53% to $14.14 on speculation that a deal could take place between the two companies.

- Shares of SINA have jumped almost 18% on Thursday to $92.34 after a senior Chinese government official encouraged agencies to use micro-blogging services to disclose information. SINA is the owner of Weibo, which is a Twitter-like micro-blogging service popular in China.

- Shares have surged almost 10% on rumors that Walter may be a takeout target for a large resources company such as BHP Billiton

, which recently bought Petrohawk Energy

at a huge premium. The stock is currently trading at $73.39, after hitting a 52-week high of $143.76 earlier in the year.