Who We Are

We are a leading independent Energy and Oil Broking firm servicing sectors in the United States, Europe and Middle-east.

Company Overview

Ruby Cube Investments is a leading oil brokerage firm operating in the United States, Europe, and the Middle East.

With a strong presence in these key regions, we specialize in providing comprehensive and tailored solutions to businesses in the oil industry. Our unwavering commitment to excellence, industry expertise, and global network of partners enable us to deliver exceptional services that drive success for our clients.

At Ruby Cube Investments, we understand the unique challenges faced by businesses operating in the oil industry. With decades of collective experience and a deep understanding of market dynamics, our team of seasoned professionals is dedicated to helping clients navigate the complexities of the energy market, optimize their operations, and achieve their strategic objectives.

Our extensive network of trusted suppliers, refineries, and counterparties across the United States, Europe, and the Middle East enables us to connect clients with reliable sources of energy and ensure seamless execution of contracts. We pride ourselves on our ability to negotiate competitive terms, transparent agreements, and favorable pricing on behalf of our clients, maximizing their cost savings and operational efficiency.


Stephanie Lewis

Our Values


It is not enough to simply do the job. The job must be done with excellence and attention to detail.


We know that respect is earned through experience. We strive to bring honesty and respect to each relationship and every interaction.


Results matter. We bring a relentless focus on results to each and every deal, project or engagement.

Meet Our founder/Lead Broker

Stephanie Lewis

Stephanie Lewis

Stephanie Lewis is a visionary entrepreneur and industry expert, renowned as the Founder and Lead Broker of Ruby Cube Investments, a leading oil brokerage firm based in the United States. With her unparalleled expertise in the oil industry and a passion for providing exceptional services to clients, Stephanie has built Ruby Cube Investments into a trusted and sought-after name in the sector.

With over two decades of experience in the oil industry, Stephanie possesses an in-depth understanding of market dynamics, trends, and the complexities that businesses face in procuring energy resources. Her journey began with her early fascination with the energy sector, leading her to pursue a degree in Energy Economics and Finance from a prestigious university. Stephanie's academic background laid a solid foundation for her successful career and prepared her to navigate the intricacies of the industry.

Driven by her entrepreneurial spirit and unwavering commitment to excellence, Stephanie founded Ruby Cube Investments with the vision of providing comprehensive and tailored solutions to businesses operating in the oil industry. Under her astute leadership, Ruby Cube Investments has grown to become a leading brokerage firm, offering a wide range of services including energy procurement, fuel oil swaps, advisory services, and more.