Our mission is to streamline decision making by delivering clear, actionable insights through Commercial and GIS expertise

Cartesia provides Commercial Advisory services and GIS Solutions that help upstream and midstream teams make clear, confident decisions

Explore Services App Gallery
Scroll

About Us

Cartesia brings over 45 years of combined upstream and midstream oil & gas experience, including contributions to private equity–backed exits exceeding $1B

The Cartesia Energy partners
Jared Guerrero

Jared Guerrero

Founding Partner

With more than a decade of experience across the upstream and midstream sectors, Jared applies his extensive GIS skill set to commercial, business development, and M&A workflows, bringing a unique perspective to each

Phillip Zamzow

Phillip Zamzow

Partner

With more than 20 years in the upstream and midstream sectors, Phillip offers expertise in commercial negotiations, commercial operations, product marketing and regulatory compliance

Blake Shelton

Blake Shelton

Partner

Through 16 plus years of industry experience, Blake has developed deep knowledge in upstream and midstream oil and gas marketing, business development, contract administration, and CCS development initiatives

Our Services

Services

The services below represent our core offerings. For specialized or unique projects, contact us to discuss a tailored solution designed around your business needs

Commercial Consulting

Our Commercial Consulting supports upstream and midstream organizations across the full deal lifecycle from opportunity evaluation through execution.

Commercial Agreements & Contract Structuring

Midstream Agreements

  • Wellhead Gas Purchase & Sale Agreements (POP, etc.)
  • Gas Gathering, Processing & Treating Agreements
  • Crude Purchase & Sale Agreements
  • Crude Gathering Agreements

Downstream Agreements

  • NAESB Agreements and Special Provisions
  • Residue, Crude, and NGL Marketing Agreements
  • Pipeline Interconnect Agreements

Marketing & Commercial Optimization

  • Natural gas, NGL, and crude sales management
  • Scheduling, nominations, and delivery coordination
  • Interface with midstream counterparties and downstream markets

Settlements & Commercial Administration

  • Upstream and downstream settlement statement review
  • Contract administration and commercial optimization
  • Ethane rejection/recovery analysis

Commercial Mapping Services & GIS System Management

GIS turns spatial data into clear, actionable intelligence. Clients can engage these services for standalone commercial mapping, full GIS management, or an integrated solution that supports both. Whether answering questions, like who is nearby, what competition exists, or where opportunity may be underserved — these services provide the visual context needed for outreach, screening, and early stage project evaluation.

GIS Services

  • GIS enterprise implementation and management
  • Custom web maps tailored to your assets and workflows
  • Mobile friendly maps and data collection
  • Screening greenfield and brownfield opportunities and competitive density
  • Identifying nearby customers, competitors, and infrastructure
  • Clear, presentation ready maps for internal and external use

Contact

Let’s Chat

Whether you’re exploring a new GIS project or need support with commercial decisions, we’re here to help. Contact us to discuss your needs and see how Cartesia can support your business

Phone 956-244-5989
Email JG@cartesiaenergy.com
Cartesia Energy San Antonio, TX