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Dennis Lopez Email & Phone Number

Trading | Strategy | Business Development | Energy at Marathon Petroleum Corporation
Location: Houston, Texas, United States 8 work roles 3 schools
1 work email found @weisscopower.com LinkedIn matched
✓ Verified May 2026 4 data sources Profile completeness 100%

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Work email d****@weisscopower.com
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Role
Trading | Strategy | Business Development | Energy
Location
Houston, Texas, United States

Who is Dennis Lopez? Overview

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Quick answer

Dennis Lopez is listed as Trading | Strategy | Business Development | Energy at Marathon Petroleum Corporation, based in Houston, Texas, United States. AeroLeads shows a work email signal at weisscopower.com and a matched LinkedIn profile for Dennis Lopez.

Dennis Lopez previously worked as Trading Book Lead - International at Marathon Petroleum Corporation and Senior Commercial Representative at Repsol. Dennis Lopez holds Master Of Business Administration (M.B.A.), Finance And Management from Tulane University - A.B. Freeman School Of Business.

Company email context

Email format at Marathon Petroleum Corporation

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{first_initial}{last}@weisscopower.com
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AeroLeads found 1 current-domain work email signal for Dennis Lopez. Compare company email patterns before reaching out.

Profile bio

About Dennis Lopez

A results oriented professional, with 15+ years of diverse “hands on” experience in the core areas of Oil and Gas upstream, midstream, and downstream commercial business; Operations and Management of gas processing and crude oil exports; proven capability of working in a global business environment. Demonstrated ability in developing systems, people and implementing processes, apart from providing strategic business support to C-level management.Core Areas of Strength• Entrepreneurial Mindset• Arbitrage Analysis & Trade execution• Business development/deal origination • Negotiation of Gas /Oil midstream Agreements• Risk Management & Governance • Organizational development & Integration• Expertise in US Oil and Gas Markets, including LNG. • Stakeholder Management

Listed skills include Sap, Supply Chain Management, Sharepoint, Commodity Markets, and 36 others.

Current workplace

Dennis Lopez's current company

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Marathon Petroleum Corporation
Marathon Petroleum Corporation
Trading | Strategy | Business Development | Energy
MOKENA, Illinois
AeroLeads page
8 roles · 19 years

Dennis Lopez work experience

A career timeline built from the work history available for this profile.

Trading Book Lead - International

Current

Findlay, Ohio, US

International Middle Distillates trading

Jan 2023 - Present

Senior Commercial Representative

Madrid, Madrid, ES

Eagle Ford Crude Origination, trading, Marketing, and Business Development

2020 - Jan 2023

Crude Oil Marketing Representative - Supply & Trading

Oxy

Houston, TX, US

  • Market Oxy’s equity Vasconia crude cargoes on a spot basis from Coveñas, Colombia
  • Explore business development/trading opportunities that would support the Colombian upstream team on longer-term production outlook
  • Market Oxy’s WTI crude cargoes on DES terms to LATAM destinations to further enable Oxy’s Global coverage of crude oil markets
  • Interface with existing and potential crude oil customers to build and strengthen business relationships
  • Demonstrate a deep understanding of the complex crude markets from either WTI/Vasconia equity sales or trading through the study of arbitrage analysis, and robust market research
2016 - 2020 ~4 yrs

Marketing Analyst, Marketing

Navi Mumbai, Maharashtra, IN

  • Oversee the marketing of Eagleford NGL production and Northeast Marcellus natural gas production
  • Accountable for Global ethane and International waterborne LPG/LNG competitive market intelligence used for commercial insight and strategy development
  • Responsible for NGL & Natural Gas market fundamentals
  • Provide the commercial team original insights on existing & future ethane & LPG market trends, pricing, and origination opportunities, including monitoring key indicators of specific regional energy markets in USA.
2014 - 2016 ~2 yrs

Shale Gas Operations, Trading & Marketing

Paris La Défense Cedex, FR

- Operations & Marketing responsibilities covered Total's joint venture interest with Chesapeake Energy in a large-scale development project in the Utica Shale (OH)- Compiled information and issued weekly reports to front office teams in Houston & London on activities in the Utica Shale basin- Tracked and analyzed daily P&L related to Utica shale to.

2012 - 2014 ~2 yrs

Analyst, Trading & Marketing

Paris La Défense Cedex, FR

- Issued daily ICE & NYMEX limit reports to front office personnel and reviewed NAESB limitations- Performed margin call reconciliations against clearing broker’s daily deal records and reported MtM findings to upper management

2011 - 2012 ~1 yr

Business Analyst Ii, Us Operations

Calgary, Alberta, CA

  • Completed analysis on vendors to ensure that Operations & Supply Chain Management teams had adequate supplier resources to meet companywide business’ current and future demands for key services and commodities
  • Streamlined company’s supplier management work process through extensive reviews
  • Optimized existing prime contractor value to the company by increasing their scopes of work
  • Reviewed and approved all Supplier Information Questionnaire (SIQ) requests for all TransCanada’s U.S assets
  • Trained the supply chain team and client groups on new prequalification processes and supply chain responsibilities
  • Ensured conformance to vendor management process requirements
2009 - 2011 ~2 yrs

International Buyer

Houston, Texas, US

  • Accomplished broker agent specialized in the energy sector (i.e. upstream, midstream, and downstream oil & gas industry) saving end users on average 20%
  • Rationalized suppliers in order to obtain leverage pricing, delivery, and services, thus, saving end- users and increase profits for the company by 10-15%
  • Analyzed requisitions (RFQ’s) from end-users for commodities and recommended modifications as needed
  • Issued purchase orders based on specifications from clients and confirmed accuracy
  • Developed international business relations with departments in United Arab Emirates, Asia, Africa, North America, Central America, South America, and the Caribbean
  • Handled logistics of all domestic/ international orders via land and/or ocean
2007 - 2009 ~2 yrs
Team & coworkers

Colleagues at Marathon Petroleum Corporation

Other employees you can reach at exxonmobilpipeline.com. View company contacts →

3 education records

Dennis Lopez education

Master Of Business Administration (M.B.A.), Finance And Management

Tulane University - A.B. Freeman School Of Business

Managing The Global Enterprise

Universidad Pontificia Comillas

Bachelor’S Degree, Economics & International Business

University Of Houston, C.T. Bauer College Of Business
FAQ

Frequently asked questions about Dennis Lopez

Quick answers generated from the profile data available on this page.

What company does Dennis Lopez work for?

Dennis Lopez works for Marathon Petroleum Corporation.

What is Dennis Lopez's role at Marathon Petroleum Corporation?

Dennis Lopez is listed as Trading | Strategy | Business Development | Energy at Marathon Petroleum Corporation.

What is Dennis Lopez's email address?

AeroLeads has found 1 work email signal at @weisscopower.com for Dennis Lopez at Marathon Petroleum Corporation.

Where is Dennis Lopez based?

Dennis Lopez is based in Houston, Texas, United States while working with Marathon Petroleum Corporation.

What companies has Dennis Lopez worked for?

Dennis Lopez has worked for Marathon Petroleum Corporation, Repsol, Oxy, Reliance Holding Usa, Inc., and Total Gas & Power Ltd.

Who are Dennis Lopez's colleagues at Marathon Petroleum Corporation?

Dennis Lopez's colleagues at Marathon Petroleum Corporation include Morgan Snincak, Debora White, Dean Sacerdote, G Michael Evans, and Dylan Koch.

How can I contact Dennis Lopez?

You can use AeroLeads to view verified contact signals for Dennis Lopez at Marathon Petroleum Corporation, including work email, phone, and LinkedIn data when available.

What schools did Dennis Lopez attend?

Dennis Lopez holds Master Of Business Administration (M.B.A.), Finance And Management from Tulane University - A.B. Freeman School Of Business.

What skills is Dennis Lopez known for?

Dennis Lopez is listed with skills including Sap, Supply Chain Management, Sharepoint, Commodity Markets, Supply Chain, Microsoft Excel, Analysis, and Cross Functional Team Leadership.

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