It costs me less than someone else to refuel during a long flight. I suspect refueling might be a problem. How would I go about investigaing & fixing?
Airport refuelers compete for service and some offer freebees to the pilot in exchange for the refueling job (and no discounts on the fuel) No skin of pilot's nose if company pays more for fuel. As a head pilot for Alpha Zeta Private Cargo (have 15 private jets), I am tasked with cutting costs.
This is a good question. First, you are correct in saying that there should be an investigation. I would start one right away. If a pilot is getting kickbacks and other benefits from fuel companies, there is a serious conflict of interest. This is especially bad, because it hurts the company and shareholders. There should also be disciplinary actions.
Second, you can make some structural changes to bypass the above problem. All you need to do here is not allow pilots to talk with fuel companies and negotiate deals. All purchasing of fuel can be conducted by other company people.
Third, since you have a fleet of 15 jets, I could get companies to bid for pricing. At this point you should weigh the options and go with the company that offers the best deal. If you follows these three steps, you should be in good position to save money.