
From Humble Oil to a global energy center
Humble Oil and Refining Company was organized in the early twentieth century and later became part of Standard Oil of New Jersey, a predecessor of Exxon.
Read the Houston Chronicle history →Humble roots. Industrial focus.
Founded in 1987, Electronic Technical Services Corporation built its foundation around industrial electrical controls, power-generation systems, custom equipment, repairs and field support.
ETSCO’s work has spanned drilling, pipelines, petrochemical facilities, power generation, marine applications and other industrial markets. The equipment has evolved, but the underlying discipline remains: understand the power system, the controls, the enclosure, the interfaces and the operating need.
That background connects the company’s legacy control expertise to today’s work involving SCR/VFD control houses, generator and motor controls, cabinets and enclosures, legacy equipment support, and switchgear-related project review.

Each capability adds to the system knowledge behind the next.
Control modules, excitation, protection-related interfaces and AC/DC motor-control applications.
Drilling-power controls, drive systems, operator controls and supporting assemblies.
Fabricated structures, cabinets, cooling, wiring and system integration.
Existing-equipment needs, new-project review, package interfaces and schedule-driven problem solving.
ETSCO’s hometown grew alongside the Texas oil industry and the greater Houston region’s energy and manufacturing base.

Humble Oil and Refining Company was organized in the early twentieth century and later became part of Standard Oil of New Jersey, a predecessor of Exxon.
Read the Houston Chronicle history →
After oil was discovered in 1904, Humble quickly became a Texas oil boomtown. The annual Good Oil Days celebration preserves that local history.
Learn about Good Oil Days →



Read the mission and values behind ETSCO’s quality, delivery and dependability.