Okay, let’s tackle this. So David Ferguson has a strong background in finance, with skills like financial reporting, internal controls, and auditing. He’s worked as an International Controller at Helmerich & Payne, which is a significant company. Location is Tulsa, Oklahoma, which is a mid-sized city. Finance professionals with his level of experience and skills typically charge around $100–$200 per hour. Considering his role and location, I estimate his hourly rate to be around $125, which is slightly below the average for finance professionals in the US. Some industry benchmarks suggest that finance professionals with similar skills and experience can earn up to $250 per hour, but this seems high for this role and location. Therefore, I’ve estimated a rate of $125.