Take context from the input text and decide on the accurate relationship between 'Petrobras' and 'Gas' from the options provided.
Options: product/material produced, manufacturer, industry, headquarters location

Today we have with us Roberto Castello Branco, Petrobras CEO; Andrea Almeida, Chief Financial and Investor Relations Officer; Anelise Lara, Chief Refining and Natural Gas Officer; André Chiarini, Chief Logistics Officer; Carlos Alberto Pereira de Oliveira, Chief Exploration and Production Officer; Marcelo Zenkner, Chief Governance and Compliance Officer; Nicolás Simone, Chief Digital Transformation and Innovation Officer; Roberto Ardenghy, Chief Institutional Relations Officer; and Rudimar Lorenzatto, Chief Production Development Officer.
product/material produced