DXP Enterprises ( DXPE) edged higher after the company set plans to buy Nebraska's Precision Industries for $106 million.

DXP provides a variety of pumping, supply, maintenance and repair services. The stock was gaining 0.9% to $35.55.

Gastar Exploration ( GST) named Jeffrey C. Pettit as vice president and chief operating officer.

Pettit, 50, was most recently at Dominion ( D). Shares of the exploration-and-production company were down 1.7% at $1.74.

Hastings Entertainment ( HAST), a seller of movies, books, video games and music, saw its shares rise after the company posted second-quarter earnings of $1.9 million, or 17 cents a share, compared with $200,000, or 2 cents a share, a year earlier.

Total revenue increased 2.3% to $125.9 million. Hastings also boosted its full-year profit forecast. Shares were up 9.8% at $6.81.

PacificNet ( PACT), a provider of gaming technology, e-commerce and customer relationship management services in China, was higher following the release its results for the second quarter.

Net revenue fell to $9.02 million from $13.21 million last year. Earnings declined to 2 cents a share from 7 cents. Still, shares of PacificNet were up 0.2% at $4.50.