Summary: FracFocus disclosures that omit fundamental quantity information undermine the integrity of the fracking chemical data. Open-FF (1) found that the operator Phoenix PetroCorp published 12 disclosures with quantity data missing for at least some records. We summarize those omissions here.
A chemical disclosure instrument such as FracFocus depends on accurate and complete data. Individual disclosures with poor or missing data can erode the trust of users for the entire system. FracFocus, unfortunately, has many disclosures with missing data. This post is part of Open-FF’s effort to improve FracFocus data integrity and to alert stakeholders to these data weaknesses.
Along with the identity of a chemical used in a fracking operation, the quantity is critical information. The range of material quantities reported in FracFocus stretches from less than one pound to over a million pounds. When quantity data is missing, a reader of a disclosure won’t be able to tell if, say, a hydrochloric acid record is for one pound or one million pounds – the difference between a small jar’s worth and many tanker trucks full.
Phoenix PetroCorp, Inc. omissions
We’ve found many such data omissions (2) in the disclosures of the operating company, Phoenix PetroCorp, Inc.. As of this date, we’ve found 12 disclosures with at least one omission, or 63.2% of all of the company’s disclosures (example). The following chart shows when those fracking jobs occurred and how many records were missing data.

Compared to other companies
More than half of all operators reporting to FracFocus had NO records with quantity omissions. In the following graph, each point is an operator. The companies without omissions are not on this graph. Just 25% of companies are above the horizontal line, and 25% to the right of the vertical line. Phoenix PetroCorp, Inc. is highlighted in orange. Clearly a small fraction of companies account for much of the lacking records and Phoenix PetroCorp, Inc. is part of that club.

Which states?
These flawed disclosures are for fracking jobs exclusively in Texas
Which chemicals?
The following table lists the materials for which quantity was omitted and how many records of Phoenix PetroCorp, Inc. were affected.
| CASRN | Name | Molecular structure | Number of missing values |
|---|---|---|---|
| 64742-47-8 | Distillates (petroleum), hydrotreated light | no image | 12 |
| 75-91-2 | tert-Butyl hydroperoxide | ![]() | 12 |
| 64742-95-6 | Light aromatic solvent naphtha (petroleum) | no image | 12 |
| 65-85-0 | Benzoic acid | ![]() | 12 |
| 67-48-1 | 2-Hydroxy-N,N,N-trimethylethan-1-aminium chloride | ![]() | 12 |
| 67-56-1 | Methanol | ![]() | 12 |
| 67-63-0 | Isopropanol | ![]() | 12 |
| 68-12-2 | N,N-Dimethylformamide | ![]() | 12 |
| 68002-97-1 | Ethoxylated C10-16 alcohols | no image | 12 |
| 68139-30-0 | 1-Propanaminium, N-(3-aminopropyl)-2-hydroxy-N,N-dimethyl-3-sulfo-, N-coco acyl derivs., inner salts | no image | 12 |
| 68439-45-2 | Alcohols, C6-12, ethoxylated | no image | 12 |
| 68439-46-3 | Alcohols, C9-11, ethoxylated | no image | 12 |
| 68439-51-0 | Alcohols, C12-14, ethoxylated propoxylated | no image | 12 |
| 68607-28-3 | Quaternary ammonium compounds, (oxydi-2,1-ethanediyl)bis[coco alkyldimethyl, dichlorides | no image | 12 |
| 7447-40-7 | Potassium chloride | ![]() | 12 |
| 7631-86-9 | Silica | ![]() | 12 |
| 100-97-0 | Methenamine | ![]() | 12 |
| 7647-01-0 | Hydrochloric acid | ![]() | 12 |
| 7681-82-5 | Sodium iodide | ![]() | 12 |
| 77-92-9 | Citric acid | ![]() | 12 |
| 7727-37-9 | Nitrogen | ![]() | 12 |
| 7727-54-0 | Diammonium peroxydisulfate | ![]() | 12 |
| 7757-82-6 | Sodium sulfate anhydrous | ![]() | 12 |
| 7772-99-8 | Stannous chloride | ![]() | 12 |
| 7783-18-8 | Ammonium thiosulfate | ![]() | 12 |
| 78330-19-5 | Alcohols, C7-9-iso-, C8-rich, ethoxylated | no image | 12 |
| 78330-20-8 | Alcohols, C9-11-iso-, C10-rich, ethoxylated | no image | 12 |
| 84133-50-6 | Alcohols, C12-14-secondary, ethoxylated | no image | 12 |
| 9000-30-0 | alpha-D-Galactopyrano-beta-D-mannopyranan | no image | 12 |
| 9003-35-4 | Bakelite | no image | 12 |
| 64742-94-5 | Solvent naphtha, petroleum, heavy arom. | no image | 12 |
| 91-20-3 | Naphthalene | ![]() | 12 |
| 64-19-7 | Acetic acid | ![]() | 12 |
| 64-18-6 | Formic acid | ![]() | 12 |
| 10043-35-3 | Boric acid (H3BO3) | ![]() | 12 |
| 10043-52-4 | Calcium chloride | ![]() | 12 |
| 10124-31-9 | Ammonium acid phosphate | no image | 12 |
| 102-71-6 | Triethanolamine | ![]() | 12 |
| 104-76-7 | 2-Ethyl-1-hexanol | ![]() | 12 |
| 111-30-8 | Glutaraldehyde | ![]() | 12 |
| 111-76-2 | 2-Butoxyethanol | ![]() | 12 |
| 12125-02-9 | Ammonium chloride | ![]() | 12 |
| 124-38-9 | Carbon dioxide | ![]() | 12 |
| 1302-74-5 | Corundum (Aluminum oxide) | no image | 12 |
| 1302-76-7 | Kyanite (Al2O(SiO4)) | no image | 12 |
| 1302-93-8 | Mullite (Al6O5(SiO4)2) | no image | 12 |
| 1310-73-2 | Sodium hydroxide | ![]() | 12 |
| 1338-43-8 | Sorbitan, mono-(9Z)-9-octadecenoate | ![]() | 12 |
| 55566-30-8 | Tetrakis(hydroxymethyl)phosphonium sulfate | ![]() | 12 |
| 5989-27-5 | D-Limonene | ![]() | 12 |
| 14464-46-1 | Cristobalite | no image | 12 |
| 14808-60-7 | Quartz (SiO2) | no image | 12 |
| 16887-00-6 | Chloride | ![]() | 12 |
| 25322-68-3 | Polyethylene glycol | ![]() | 12 |
| 64-02-8 | Ethylenediaminetetraacetic acid tetrasodium salt | ![]() | 12 |
| 50-00-0 | Formaldehyde | ![]() | 12 |
| 141-43-5 | Ethanolamine | ![]() | 12 |
| 63428-86-4 | Polyethylene glycol hexyl ether sulfate, ammonium salt | no image | 12 |
| 56-81-5 | Glycerol | ![]() | 12 |
| 57-55-6 | 1,2-Propylene glycol | ![]() | 12 |
| 75-12-7 | Formamide | ![]() | 1 |
| 8002-09-3 | Pine oils | no image | 1 |
| 107-19-7 | Propargyl alcohol | ![]() | 1 |
| 26027-38-3 | 26-(4-Nonylphenoxy)-3,6,9,12,15,18,21,24-octaoxahexacosan-1-ol | ![]() | 1 |
| 100-44-7 | Benzyl chloride | ![]() | 1 |
The numbers in this post reflect a FracFocus data set downloaded in January 2025. For more up-to-date statistics, visit this link.
Endnotes
- Open-FF is a public service project, independent of FracFocus, that aims to foster better understanding of chemical uses of the fracking industry by organizing and analyzing chemical disclosures of FracFocus. To see company-specific information about Phoenix PetroCorp, Inc., visit this page.
- The values that are omitted are in the “PercentHFJob” data field which represents the percentage (by mass) of the total fracking fluid. This number is usually less that 1% but because the mass of the total fluid is enormous – often greater that 100 million pounds – the actual mass of the chemical component can be quite large.
- The numbers in this post reflect a FracFocus data set downloaded in January 2025. For more up-to-date statistics, visit this link.
- Title image credit: Becky Mansfield, modified by author
- Chemical images credit:ย EPA Comptox











































