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GTC Technology is a Houston, TX-based company in the Energy and Utilities sector.
Gilby Production and Machine is a Velma, OK-based company in the Energy and Utilities sector.
Cudd Pressure Control is a Houston, TX-based company in the Energy and Utilities sector.
Ziegler Chemical is one of the leading companies in the Energy & Utilities sector.
Dorchester Minerals, L.P. is a Dallas based owner of producing and non-producing crude oil and natural gas mineral, royalty, overriding royalty, net profits, and leasehold interests and its common units trade on the NASDAQ Global Select Market under the symbol DMLP.