When oil and gas companies face complex royalty audits, demands, compliance issues, administrative challenges, transactional concerns, or litigation, they turn to Rosario.
Rosario advises oil and gas companies on critical royalty reporting, payment, and compliance issues, ranging from small, specialized operators to multi-national companies. She represents payors operating on federal, Indian, state, and private lands, and those operating under federal leases in the Pacific and Gulf of Mexico.
Clients rely on Rosario for her insights on regulatory rulemaking and her proactive guidance on compliance with new rules and policies. Over the course of her career, Rosario’s work has included saving producers an estimated $25 billion in costs.
Rosario guides her clients not only through self-audits but also in responding to governmental audits, including data mining requests, compliance reviews, enforcement inquiries, and other investigations conducted by the Office of Natural Resources Revenue (ONRR), the Department of Justice, the Office of Inspector General, and State Departments of Audit. She also represents clients seeking royalty refunds and disputing royalty demands, including orders to pay, orders to perform restructured accounting, civil penalties, and denials of cost allocation and valuation proposals.
Rosario brings a rare combination of computational acumen and creative thinking necessary to articulate comprehensive and novel legal arguments persuasive to regulators and courts. Rosario regularly appears before ONRR, the Bureau of Indian Affairs, the Interior Board of Land Appeals, and in federal district and appellate courts.
Clients appreciate Rosario’s painstaking attention to detail as well as her ability to recognize opportunities for deductions and other cost valuation methodologies that may reduce financial obligations.
Before joining Holland & Hart, Rosario was a partner at Ryan Law Firm, where she led the firm’s oil and gas royalty practice. She also practiced as an associate at Baker & Hostetler and Norton Rose Fulbright.