Many oilfield service companies have major cash flow problems, and it’s not their fault. Most of the big oil and gas companies pay their invoices in 30-90 days. Many oilfield service companies don’t have the cash reserves to wait for those payments; they have their own obligations to meet. Oilfield service companies have high cash demands and slow turnaround times, and business owners feel it where it hurts-their pocket books. This puts oilfield service companies between a rock and a hard place.