If you go back and read the transcript from their last CC an analyst asks them the same question, and their reply if memory serves essentially boiled down to more liquidity.
I don't personally find this to be especially persuasive. If I had to guess the company may be using this as a way of signaling to the market that the company is doing fine, we're bullish about the future, and please ignore the large recent dip in share price. But that's just my little pet theory.
Personally I think that RPC's selloff since July is overdone, and that the company is due for a decent rally in the next few months. I'm not going to predict that RPC'll get back to $15 in the near future, but it wouldn't shock me if it does. I bought some $10 June Calls so obviously a rally to $15 would be welcome. I will say this: give this stock some good news and it'll probably go up quite a lot.