def __init__(self):
        self.dl = DataLoader()
        self.dl.load_drill_schedule('input/drill_schedule.csv')
        self.costs = Costs.Costs()

        self.dl.load_type_curve('input/utica_type_curve.csv', 7500)
        self.dl.load_type_curve('input/marcellus_type_curve.csv', 7000)
        self.dl.load_opex('input/opex.csv')
        self.dl.load_prices('input/price.csv')
        self.dl.load_costs(self.costs)

        self.econ = Economics()
        self.vis = Visualizer()