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W&T Offshore Incorporated is a Houston, TX-based company in the Energy and Utilities sector.
HKN or Harken Oil & Gas is a Southlake, TX-based company in the Energy and Utilities sector.
Dennis Oil Company (DOC) Lubricants is a Springfield, MO-based company in the Energy and Utilities sector.
Dolan Directional Drilling Inc is a Keller, TX-based company in the Energy and Utilities sector.
,, engages in the international commerce, trade, transportation, distribution, and marketing of fertilizer, chemicals, methanol, crude oil, liquefied petroleum gas, and petrochemicals.