H/COMET

H/COMET is our revolutionary and world-renowned cloud application for quickly comparing and evaluating crude oil properties, values and refining optimization decisions.

Crude Oil Valuation

H/COMET provides the tools to quickly compare/evaluate crude oil properties/values, calculate Netback GPW Values, and perform Crude Substitution Analysis. Use the Simple LP model with the basic subscription or upgrade to the Advanced LP Model, which is enhanced to assist H2, Nat Gas and CO2 studies. Moreover, you have the option to run a Full Custom LP under the GRTMPS Refinery Planning Tool (G5 version) that can be uploaded and run from H/COMET or used to perform carbon intensity modeling and CI Studies.

Netback GPW Values

Value crudes at any refinery or market

Access to preconfigured refineries worldwide (600+)

Run Multi Dimensional Analysis

Assay Comparison

Find, view, and evaluate crude assays from database

Compare crudes side by side for any desired qualities

Run Flash Assay Tool to update an assay

Recut and Optimize Blends

Re-cut and blend crudes to any desired cut point

Fractionate crudes & blend with custom cuts

Optimize crude blends to target recipes.

Perform Crude Substitution Analysis

Crude Substitution analysis to evaluate opportunity crudes

Find incremental per barrel, marginal values

Rank economic crudes of interest

Cloud-Based

Annual Subscription Optimization

H/COMET incorporates powerful mathematics for accurate crude oil valuations with interactive reporting and easy to use crude assay database.

Immediate Results

With a cloud-based subscription platform, H/COMET provides immediate crude valuations that calculate netback refinery values worldwide. With the Blend Optimizer Tool, quickly optimize crude mixes to meet quality targets while checking crude compatibility statuses.

Robust API Capabilities

Designed to be fully featured and highly flexible, API integration enables seamless connectivity between H/Comet and external software systems. Developers and teams can effortlessly harness H/Comet’s tools to streamline workflows and extend functionality.

Pre-Configured Refineries

In H/COMET, over 570 refineries worldwide are pre-configured to determine crude values at any refinery.

Commercial Assays

The Assay Databases are continuously updated for H/COMET. The current libraries in 2025 include: 3,000+ Chevron assays, 1700+ Phillips assays, and 1000+ Haverly assays.

Intuitive User Interface

H/COMET provides an intuitive user friendly interface that makes running LP’s for the novice a feasible reality!

Crude Assay Libraries

Haverly offers the widest selection of high quality assay data and each of the libraries presented are fully compatible with the H/CAMS and H/COMET software. Both applications allow blending of crudes within a specific library or between totally separate libraries.

Phillips 66 Assay Library

Haverly is pleased to announce a new addition to our available libraries. The Phillips 66 Crude Assay Library currently has 1,800+ assays representing crudes from around the world and has a large emphasis on North America assays.

The library has many assays at different locations for tight oils, WTI, WTS and Canadian crude oils. This will give refineries and trading companies the opportunity to make the right purchase/sale decisions on crude oil quality by location.

The library will be updated on an annual basis.

Chevron Crude Assay Library

The Chevron Crude Assay Library currently has over 3,500+ assays representing crudes from around the world. This library is actively updated on an annual basis.

Haverly Crude Assay Library

The Haverly Crude Assay Library currently contains over 1,000+ assays from around the world and is updated on a regular basis.

Client-Owned Crude Assay Libraries

Both H/CAMS and H/COMET can process any client-owned assays. Haverly provides a free data conversion service to map any assay data format into an H/CAMS or H/COMET compatible format.

Ready to see H/COMET in Action?