| AAV | Advantage Oil & Gas Ltd. | E&P |
| -- PRIVATE -- | Ameredev II | E&P |
| AMPY | Amplify Energy Corp. | E&P |
| -- PRIVATE -- | Anschutz Exploration Corporation | E&P |
| -- PRIVATE -- | Atlas Sand | OFS |
| BTE CN | Baytex Energy Corporation | E&P |
| BXE | Bellatrix Exploration Ltd. | E&P |
| BSM | Black Stone Minerals L.P. | Mineral/Royalty |
| BNKPF | BNK Petroleum, Inc. | E&P |
| BCEI | Bonanza Creek Energy Inc. | E&P |
| MNRL | Brigham Minerals, Inc. | Mineral/Royalty |
| COG | Cabot Oil & Gas Corporation | E&P |
| -- PRIVATE -- | Caerus Oil and Gas LLC | E&P |
| CHAP | Chaparral Energy Inc. | E&P |
| N/A | Colorado School of Mines | EDUCATION |
| CLR | Continental Resources, Inc. | E&P |
| CLB | Core Laboratories | OFS |
| CORR | CorEnergy Infrastructure Trust Inc. | REIT |
| CRARY | Crédit Agricole | FINANCIAL |
| -- PRIVATE -- | Crestone Peak Resources | E&P |
| DNR | Denbury Resources Inc. | E&P |
| -- PRIVATE -- | Drillinginfo | OFS |
| ESTE | EarthStone Energy Inc. | E&P |
| -- PRIVATE -- | East Daley Capital Advisors | FINANCIAL |
| ERF CN | Enerplus Corporation | E&P |
| E | Eni, SpA | E&P |
| EPM | Evolution Petroleum Corporation Inc. | E&P |
| FLMN | Falcon Minerals Corporation | Mineral/Royalty |
| FTK | Flotek Industries, Inc. | OFS |
| -- PRIVATE -- | Fortis Energy Services | OFS |
| FRU | Freehold Royalties Ltd. | Mineral/Royalty |
| GPRK | GeoPark | E&P |
| GDP | Goodrich Petroleum Corporation | E&P |
| GTE | Gran Tierra Energy, Inc. | E&P |
| -- PRIVATE -- | Great Western Petroleum | E&P |
| -- PRIVATE -- | Hathaway LLC | E&P |
| HPR | HighPoint Resources Corporation | E&P |
| -- PRIVATE -- | H2O Midstream | OFS |
| ICD | Independence Contract Drilling Inc. | OFS |
| JAG | Jagged Peak Energy Inc. | E&P |
| JOY | Journey Energy Inc. | E&P |
| -- PRIVATE -- | Kayrros | OFS |
| KRP | Kimbell Royalty Partners LP. | Mineral/Royalty |
| LPI | Laredo Petroleum | E&P |
| LLEX | Lilis Energy Inc | E&P |
| LBRT | Liberty Oilfield Services Inc. | OFS |
| -- PRIVATE -- | LNG Allies | OFS |
| ASX: LNG | LNG Limited | E&P |
| LONE | Lonestar Resources | E&P |
| MCEP | Mid-Con Energy Partners, L.P. | E&P |
| NOG | Northern Oil and Gas Inc. | E&P |
| NES | Nuverra Environmental Solutions | OFS |
| NVA | NuVista Energy Ltd. | E&P |
| OXY | Occidental Petroleum Corporation | E&P |
| PHX | Panhandle Oil and Gas Inc. | Mineral/Royalty |
| PDCE | PDC Energy | E&P |
| PVAC | Penn Virginia Corporation | E&P |
| CVE:TAL | PetroTal Corp. | E&P |
| HCR | Pronghorn Energy Services | OFS |
| PFIE | Profire Energy, Inc. | OFS |
| PROPX | PropX | OFS |
| -- PRIVATE -- | Protégé Energy III LLC | E&P |
| QEP | QEP Resources, Inc. | E&P |
| RRC | Range Resources | E&P |
| RZE | Razor Energy Corporation | E&P |
| REI | Ring Energy Inc. | E&P |
| ROSE | Rosehill Resources Inc. | E&P |
| -- PRIVATE -- | Samson Resources II LLC | E&P |
| VII | Seven Generations Energy Ltd. | E&P |
| SBOW | SilverBow Resources | E&P |
| -- PRIVATE -- | SitePro | OFS |
| SM | SM Energy | E&P |
| -- PRIVATE -- | Stage Completions | OFS |
| SNDE | Sundance Energy Australia Ltd. | E&P |
| SDPI | Superior Drilling Products Inc. | OFS |
| TALO | Talos Energy | E&P |
| TVE:TO | Tamarack Valley Energy Ltd | E&P |
| -- PRIVATE -- | Texas Standard Oil, LLC | E&P |
| -- PRIVATE -- | Ubiterra | OFS |
| OTCQX: UPLC | Ultra Petroleum Corp. | E&P |
| N/A | University Lands | EDUCATION |
| UNT | Unit Corporation | OFS |
| VET | Vermilion Energy Inc. | E&P |
| WTI | W&T Offshore, Inc. | E&P |
| WFC | Wells Fargo | FINANCIAL |
| WLL | Whiting Petroleum Corporation | E&P |
