Our Team
Paul Kromwyk - CFO
PAUL KROMWYK currently serves as the CFO of Grade 6 Oil, joining in June 2017, and is responsible for the finance, accounting, risk management and administration functions. Prior to this, Paul served as the CFO of Patriot Environmental Services, a private equity owned business, since March 2014, and also served on the board of Patriot. P
PAUL KROMWYK currently serves as the CFO of Grade 6 Oil, joining in June 2017, and is responsible for the finance, accounting, risk management and administration functions. Prior to this, Paul served as the CFO of Patriot Environmental Services, a private equity owned business, since March 2014, and also served on the board of Patriot. Paul has nearly 20 years of experience in finance, M&A, capital raising, private equity and senior management and has worked across a wide range of industry sectors. Prior to his CFO roles, Paul served as an investment banker for nearly 12 years, including on Wall Street for Credit Suisse and in Sydney, Australia for Greenhill. Paul began his career in Sydney as a strategy consultant for LEK Consulting, Paul has a Bachelors of Commerce and Law from the University of Queensland and an MBA from Harvard Business School.
Ben Mendes - EVP Operations
Ben Mendes - EVP Operations
Ben Mendes - EVP Operations
BEN MENDES joined Grade 6 Oil, LLC in June 2018 as the VP of Operations. Prior to Grade 6, Ben spent 10 years in upstream oil and gas operations with Berry Petroleum and Linn Energy, mostly focused on heavy oil recovery in California. Ben holds a BS in Mechanical Engineering from University of California, Santa Barbara. In addition, he
BEN MENDES joined Grade 6 Oil, LLC in June 2018 as the VP of Operations. Prior to Grade 6, Ben spent 10 years in upstream oil and gas operations with Berry Petroleum and Linn Energy, mostly focused on heavy oil recovery in California. Ben holds a BS in Mechanical Engineering from University of California, Santa Barbara. In addition, he is pursuing his Masters in Petroleum Engineering from Texas A&M University. He expects to complete this degree in 2019.
Gabriela Mendez - Project Manager
Ben Mendes - EVP Operations
Ben Mendes - EVP Operations
GABRIELA MENDEZ joined Grade 6 Oil, LLC in August 2018 as Project Manager. Prior to this, Gabriela worked at Ares Management in the Information Technology department supporting the CTO, Principal of Infrastructure and various other executives. Gabriela holds a bachelor’s degree in International Studies with a focus in Latin America and
GABRIELA MENDEZ joined Grade 6 Oil, LLC in August 2018 as Project Manager. Prior to this, Gabriela worked at Ares Management in the Information Technology department supporting the CTO, Principal of Infrastructure and various other executives. Gabriela holds a bachelor’s degree in International Studies with a focus in Latin America and a minor in French from California State University, Long Beach.
Denise Boshers - Controller
Jonathan Stinnett - Assistant Controller
Jonathan Stinnett - Assistant Controller
DENISE BOSHERS currently serves as the Controller of Grade 6 Oil LLC, joining in November 2018. Prior to this, Denise served as Controller of Berry Petroleum, a publicly traded Independent E&P Company since July 2017. Denise is a Certified Public Accountant in California, earning her license in 2001 and has nearly 20 years of accounting
DENISE BOSHERS currently serves as the Controller of Grade 6 Oil LLC, joining in November 2018. Prior to this, Denise served as Controller of Berry Petroleum, a publicly traded Independent E&P Company since July 2017. Denise is a Certified Public Accountant in California, earning her license in 2001 and has nearly 20 years of accounting and auditing experience for both publicly traded and privately held companies. Denise began her career at Deloitte & Touche after receiving her Bachelors of Arts degree in Business Economics from the University of California, Santa Barbara.
Jonathan Stinnett - Assistant Controller
Jonathan Stinnett - Assistant Controller
Jonathan Stinnett - Assistant Controller
JONATHAN joined Grade 6 Oil, LLC in January 2025 as the Assistant Controller. Prior to joining Grade 6, Jonathan worked for Berry Petroleum, a publicly traded oil manufacturing company, in various roles, most recently as the Production Accounting Manager. Jonathan has 15 plus years of accounting experience in a variety of facets, mostly
JONATHAN joined Grade 6 Oil, LLC in January 2025 as the Assistant Controller. Prior to joining Grade 6, Jonathan worked for Berry Petroleum, a publicly traded oil manufacturing company, in various roles, most recently as the Production Accounting Manager. Jonathan has 15 plus years of accounting experience in a variety of facets, mostly in supervisory positions.
Jonathan earned his bachelor's degree with an accounting concentration from California State University, Bakersfield and has a Master's degree in Accounting from Western Governor's University in Salt Lake City, Utah.