Case Study: Petroleum and Natural Gas Exploration and Production Company strengthens internal controls with Alessa by Tier1 Financial Solutions

Alessa for P-Card Monitoring

Petroleum and Natural Gas Exploration and Production Company, a $10 billion oil and gas operator, needed stronger internal controls to monitor policy breaches and financial transactions across accounts payable, vendor management, and other departments. Its existing AP workflow still relied heavily on manual work, and missing information, unauthorized approvals, and poor tracking created compliance risks. The company turned to Alessa by Tier1 Financial Solutions, using its continuous controls monitoring platform to improve oversight in real time.

Alessa was configured after a two-year risk and controls assessment to identify revenue leakage, strengthen controls, and improve compliance across accounts payable, audit automation, purchase card, and vendor management. The results were significant: more than $614 million in unclaimed AP discounts, $1.2 million in payments above approval limits, $144 million in duplicate invoices, $3 million in duplicate job-related invoices, and $66.5 million in payments tied to inactive wells. Alessa also flagged nearly 10,000 potential personal P-card transactions totaling over $1.6 million, plus more than 2,000 duplicate vendors and hundreds of employee-vendor matches.