| 1 | ExxonMobil Chemical Co., Baytown,Tex. | 3,500,000 | 4,743,027 |
| 2 | Formosa Plastics Corp. USA, Point Comfort,Tex | 2,883,000 | 3,594,017 |
| 3 | Chevron Phillips Chemical, Cedar Bayou,Tex | 2,600,000 | 3,300,707 |
| 4 | Dow Chemical Co., Freeport (LHC 7),Tex | 2,090,000 | 2,653,261 |
| 5 | Chevron Phillips Chemical, Sweeny,Tex | 1,950,000 | 2,642,544 |
| 6 | LyondellBasell Industries, Channelview,Tex. | 1,860,000 | 2,361,275 |
| 7 | INEOS Olefins and Polymers, Chocolate Bayou,Tex | 1,860,000 | 2,339,998 |
| 8 | Westlake Petrochemicals Corp., Sulphur #1,La | 1,520,000 | 1,929,644 |
| 9 | Shell Chemicals Ltd., Norco, La | 1,432,000 | 1,940,576 |
| 10 | Dow Chemical Co., Plaquemine (LHC 2),La | 1,247,000 | 1,583,070 |
| 11 | LyondellBasell Industries, LaPorte, Tex. | 1,180,000 | 1,486,443 |
| 12 | BASF/Total, Port Arthur, Tex. | 1,140,000 | 1,544,872 |
| 13 | LyondellBasell Industries, Corpus Christi, Tex. | 1,134,000 | 1,439,616 |
| 14 | ExxonMobil Chemical Co., Beuamont,Tex. | 900,000 | 1,219,636 |
| 15 | Shell Chemicals Ltd., Deer Park,Tex | 889,000 | 1,113,567 |
| 16 | Nova Chemicals, Geismar,La. | 885,000 | 1,123,510 |
| 17 | Chevron Phillips Chemical, Port Arthur,Tex | 855,000 | 1,085,425 |
| 18 | Dow Chemical Co., Orange,Tex. | 771,000 | 978,787 |
| 19 | Eastman Chemical Co., Longview,Tex | 650,000 | 825,177 |
| 20 | Motiva, Port Arthur,Tex. | 635,000 | 860,521 |
| 21 | Occidental Chemical/Mexichem, Ingelside, Tex | 550,000 | 698,227 |
| 22 | LyondellBasell Industries, Morris, Ill. | 550,000 | 698,227 |
| 23 | LyondellBasell Industries, Clinton, Iowa | 525,000 | 666,489 |
| 24 | Indorama Ventures Olefins, LLC, Carlyss, La | 440,000 | 558,581 |
| 25 | Westlake Petrochemicals Corp., Calvert CityKy. | 331,000 | 420,205 |
| 26 | Indorama Ventures Olefins, LLC, Port Neches,Tex. | 235,900 | 299,476 |
| 27 | Sasol/LyondellBassell, Lake Charles,La | — | 2,539,006 |
| 28 | Exxon/SABIC, Portland, Tex | — | 2,285,105 |
| 29 | Shell Chemicals Ltd. , Monaca, Pa | — | 2,031,205 |
| 30 | ExxonMobil Chemical Co., Baton Rouge,La | — | 1,355,151 |
| 31 | Bayport Polymers, LLC, Port Arthur, Tex. | — | — |
| 32 | Dow Chemical Co., Taft 1,La. | — | — |
| 33 | Axial/Lotte, Lake Charles, La | — | — |
| 34 | Shinetsu, Plaquemine, La | — | 634,751 |
