Oil and Energy Companies in Texas?

Question

What are some of the big name oil companies with a presence on the Texas coast. Corpus Christi to Galveston mainly is where I'm curious, but anywhere from Brownsville to Louisana's border will do in a pinch.

Are any of those big not just in oil, but also in general energy production as well? (I.E. Geothermal, Nuclear, Wind, Solar, etc)

Answer 1

GE, Exxon, Marathon, ARCO, Shell,

GE:  Oil, coal fired plants, Nucluer, Solar

Exxon:  Gasoline, oil, Biodeisel, wind

Marathon:  oil, Natural gas

ARCO,  oil, gas, solar

Shell:   oil, gas,  chemical