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MPI Warehouse

MPI Warehouse

OTECO was founded in 1948 as a Houston based distributor of oilfield specialties. From these beginnings, the company has grown to a manufacturing and sales organization supplying the worldwide industry with valves, gauges, replacement blow-out preventer packing elements, replacement mud pump parts, and a wide range of other drilling and production accessories.

Oteco factory

Providing quality products Worldwide In 1990, Oteco Equipment Company was purchased by another Houston based company and thus became Oteco, Inc. The current owner, National Flame and Forge, Inc. was founded in 1940 and is an outgrowth of a machine and repair shop operated by W.E. Pielop and W.E Pielop Jr. Since its inception, National Flame and Forge has become one of the world's largest manufacturers of mud pump fluid end replacement parts.

After 50 years of industry experience, OTECO is prepared to service the industry for the next 50 years. Occupying 120,000 square feet of manufacturing space located on nineteen acres of land, OTECO strives to provide the highest quality products using the most modern manufacturing technology available.


Gate Valve
Manifold Fittings
Pressure Gauges
Rig Hardware

Gate Valves

OTECO Gate Valves provide easy operation, tight shut-offs, extended service life, and simple, fast, low cost renewal in the field.
Our Gate Valves are ideal for use in :


Drilling applications
Wellhead applications
Corrosive water flood service
Sour gas and crude oil service
Disposal wells

Relief Valves

OTECO offers two types of fluid system relief valves.
Our Relief Valves offer a superior level of protection for slush pumps, manifolds, and other expensive components used in drilling operations.

Relief valve styles available :


Model PRV - shear pin actuated
Model RR - manual reset relief valve - Det Norske Veritas (DNV) Type Approved

Fluid End Parts

OTECO offers a full line of high quality Fluid End Pump Parts for all popular mud pumps to suit any drilling condition.

Pump parts offered include : Pump Liners, Liner Packing, Pistons, Piston Rods, Valves & Seats, Crosshead Extension Rods, Washpipe & Packing, and much MORE...

Pressure Gauges

OTECO offers a superior line of Pressure Gauges which are manufactured in OTECO's own gauge factory.

Our Pressure Gauges are available :


In a wide range of pressure ratings
In a variety of units including PSI, kPA, & Bar
In a variety of service ratings
With luminous & non-luminous dial faces
American Bureau of Shipping (ABS) Certified

Rig Hardware & Equipment

OTECO offers an extensive line of rig hardware and related products used in everyday oilfield drilling, testing, and production operations.

A few products included in this product line are :

Rig tools like chain connectors & wrenches
Manifold fittings
Oil & mud guards
Washpipe & packing
Wireline equipment and MORE...

Rubber Products

OTECO rubber products are molded in our own rubber manufacturing facility. Our chemists supervise the formulation and mixing of various elastomers to ensure our end product is capable of withstanding today's tough oilfield operating conditions. Our rubber products manufacturing facility competitively produces a wide range of products including :


Annular and Rotating BOP packing units
RAM BOP replacement rubbers
Pipe & Kelly wipers
Tubing Stripper Rubbers
Diaphragms, Bladders, and MORE...

Innovative Connectors

In addition to the standard product offerings above, OTECO also offers several specialty products including :

OTECO Connectors
ShockPads for Rig Jacking systems


Our Facilities

MPI Warehouse maintains three stocking warehouses convenient to major production areas.

MPI Casper
Casper, Wyoming

MPI Farmington
Farmington, New Mexico

MPI Williston
Williston, North Dakota

Copyright  by MPI Warehouse Specialty Co., Inc.
All rights reserved. All marks belong to owners.

MPI Warehouse Specialty Co., Inc.
All rights reserved.
All marks belong to owners.