EXHIBIT 13 ---------- AGREEMENTStockholders Agreement • July 1st, 1997 • Nova Gas Services Us Incet Al • Crude petroleum & natural gas
Contract Type FiledJuly 1st, 1997 Company Industry
June 14, 1999Merger Agreement • June 18th, 1999 • Nova Gas Services Us Incet Al • Crude petroleum & natural gas
Contract Type FiledJune 18th, 1999 Company Industry