About Us

From initial contact to project completion, our clients have the unique experience of confidence and peace of mind.

We are dedicated to providing the highest quality representation and advocacy on behalf of our clients, while focusing on all the aspects necessary to ensure success in our assignments. We’ve managed cargo operations for over a thousand vessels, achieving consistent results regardless of complexity level.

We provide hassle-free, reliable solutions to your most difficult vessel loading, discharging, and onboard blending challenge, anywhere in the world.


In 2010, Charles King, an independent petroleum loss control contractor, was working with a client facing several challenges at a terminal in Houston, TX:

  • compensating for complicated shore line adjustments
  • managing the onboard distribution of unique cargos to meet blend specifications (on a per vessel tank basis)
  • streamlining operations to minimize delays to the terminal

Charles innovated effective solutions, evolving as the client’s requirements became more complex. The results of his success led to him forming PetroCargo LLC in 2012 to keep up with the demand for his services. The company and its reputation grew quickly.

In January 2015, Charles formed Vessel Blenders LLC, choosing a name more directly reflecting the company’s unique area of expertise – load planning and supervision for onboard blended petroleum cargos on tanker vessels.

Leadership Team

Our staff has decades of combined experience in the midstream oil & gas industry.

Contact Us

Give us a call or fill in the form below and we will contact you. We endeavor to answer all inquiries within 24 hours on business days.