| E&P | ADM Energy plc | ADME.L |  | 537 K | 0.03 | 20 | 20 | 20 | -24 | / | -68 | / | -1441 | / | -0.24 | |
| E&P | Arrow Exploration Corp | AXL.L |  | 68.0 M | 23.8 | 1.3 | 14 | 8 | 38 | 116 | 40 | 11.9 | 15 | / | 0 | |
| E&P | Ascent Resources Plc | AST.L | | 4.24 M | 0.52 | -0.3 | -22 | -5 | 61 | 16 | -35 | / | -50 | / | -1.67 | |
| E&P | Capricorn Energy PLC | CNE.L | | 220.5 M | 321.5 | 0.1 | 4 | 4 | 26 | 65 | 40 | 18.9 | 3.7 | 17 | 0.3 | |
| E&P | Caspian Sunrise plc | CASP.L | | 53.8 M | 2.29 | -0.7 | -1 | -1 | -3 | / | -12 | / | 19 | / | 0.07 | |
| E&P | Centrica plc | CNA.L | | 8.88 B | 196 | -3.1 | -1 | -7 | 2 | 16 | 31 | / | -0.89 | 2.9 | 0.99 | |
| E&P | Coro Energy plc | CORO.L | | 1.77 M | 3.5 | -6.7 | -7 | -16 | -3 | -7 | -70 | / | -29 | / | -1.16 | |
| E&P | Energean plc | ENOG.L | | 1.62 B | 878.8 | 0.1 | 5 | 7 | 2 | -12 | -7 | / | 7.9 | 9.2 | 5.1 | |
| E&P | EnQuest PLC | ENQ.L | | 360.3 M | 19.4 | 1.4 | 7 | 5 | 26 | 59 | 59 | / | 32 | / | 1.84 | |
| E&P | Enwell Energy plc | ENW.L | | 36.9 M | 11.5 | -6.1 | -16 | -18 | -30 | -30 | -43 | 5.8 | 27 | / | 0 | |
| E&P | Europa Oil & Gas (Holdings) plc | EOG.L | | 13.0 M | 1.35 | -8.3 | -7 | -17 | -13 | -17 | 116 | / | -67 | / | 0 | |
| E&P | Genel Energy plc | GENL.L | | 140.7 M | 51.1 | 0.2 | -2 | 0 | -18 | -7 | -4 | / | -34 | / | 0.18 | |
| E&P | Gulf Keystone Petroleum Limited | GKP.L |  | 415.8 M | 191.2 | 1.5 | 2 | 1 | -3 | 9 | 23 | 38.2 | 1.7 | 8.4 | 0 | |
| E&P | Harbour Energy plc | HBR.L | | 4.62 B | 294.2 | 1.7 | 5 | 10 | 32 | 25 | 65 | / | -2.9 | 6.3 | 0.96 | |
| E&P | Buccaneer Energy plc | BUCE.L | | 1.25 M | 0.009 | 0 | 0 | -11 | -6 | -15 | -51 | / | -209 | / | -3.2 | |
| E&P | Nostrum Oil & Gas PLC | NOG.L | | 4.95 M | 3 | -14.3 | -14 | 82 | -15 | -16 | -15 | / | -433 | / | -6.2 | |
| E&P | The Parkmead Group plc | PMG.L | | 22.2 M | 20.4 | 1.8 | 2 | -10 | 9 | 57 | 40 | 2.9 | 45 | / | 0 | |
| E&P | PetroTal Corp | PTAL.L |  | 285.3 M | 31 | -1.6 | 3 | 18 | 48 | 32 | -3 | 10.3 | 31 | 17 | 0.13 | |
| E&P | Pharos Energy plc | PHAR.L | | 117.3 M | 28.4 | 1.6 | 9 | 2 | 22 | 39 | 41 | / | 19 | 4.7 | 0 | |
| E&P | Savannah Energy plc | SAVE.L | | 99.3 M | 6.9 | -1.4 | -3 | -12 | -14 | 23 | -1 | 1.2 | 728 | / | 2.3 | |
| E&P | Serica Energy plc | SQZ.L | | 1.10 B | 279.7 | 0.9 | 5 | 8 | 30 | 31 | 94 | / | 17 | 21 | 0.28 | |
| E&P | Sound Energy plc | SOU.L | | 10.4 M | 4.54 | -0.2 | 0 | 0 | -39 | -30 | -47 | / | -73 | / | 2.2 | |
| E&P | Southern Energy Corp | SOUC.L | | 14.7 M | 4 | 6.7 | 0 | 7 | -1 | 7 | 21 | / | -75 | / | 0.23 | |
| E&P | Star Energy Group Plc | STAR.L | | 21.0 M | 16 | 3.2 | 0 | 2 | 52 | 100 | 142 | / | -121 | / | 0.48 | |
| E&P | Synergia Energy Ltd | SYN.L |  | 1.78 M | 0.011 | 8.6 | 9 | 4 | 63 | -43 | -38 | / | 98 | / | 0 | |
| E&P | Touchstone Exploration Inc | TXP.L | | 18.6 M | 7.05 | -2.8 | -22 | -26 | -18 | 14 | -64 | 2.4 | 11 | / | 0.46 | |
| E&P | Tullow Oil plc | TLW.L | | 250.1 M | 16.8 | 5.1 | 15 | 45 | 96 | 91 | 13 | / | 14 | / | -9.9 | |
| E&P | UK Oil & Gas PLC | UKOG.L | | 2.97 M | 0.01 | -2.5 | 2 | 9209 | -34 | -54 | 10140 | / | -51 | / | 0.14 | |
| E&P | Union Jack Oil plc | UJO.L | | 7.31 M | 4.99 | 1.8 | 3 | 33 | 75 | 61 | -46 | / | 6.6 | 2.7 | 0 | |
| E&P | United Oil & Gas Plc | UOG.L | | 5.78 M | 0.23 | 11.7 | 0 | 0 | 31 | 84 | 92 | / | -219 | / | 0.03 | |
| E&P | Zephyr Energy plc | ZPHR.L | | 63.0 M | 3 | -8.3 | -6 | -8 | -25 | 18 | -23 | / | -30 | / | 0.52 | |
| DEV | Afentra plc | AET.L | | 161.7 M | 71.5 | -4.3 | 5 | -14 | 37 | 58 | 89 | / | 40 | / | 0.43 | |
| DEV | Aminex PLC | AEX.L |  | 103.9 M | 2.32 | 1 | 6 | -3 | 11 | 50 | 111 | / | -9.1 | / | 0.01 | |
| DEV | Borders & Southern Petroleum plc | BOR.L | | 105.8 M | 12 | 1.5 | 17 | 16 | 29 | 17 | 86 | / | -4.5 | / | 0 | |
| DEV | Block Energy Plc | BLOE.L | | 7.45 M | 1.03 | -1.8 | -6 | -30 | 6 | 37 | 1 | / | -9.9 | / | 0.08 | |
| DEV | Chariot Limited | CHAR.L |  | 30.4 M | 1.68 | 0.2 | -1 | 8 | 13 | 3 | 12 | / | -83 | / | 0.01 | |
| DEV | Corcel Plc | CRCL.L | | 41.1 M | 0.44 | 4 | 3 | -10 | 27 | 27 | 46 | / | -50 | / | 0.17 | |
| DEV | Deltic Energy Plc | DELT.L | | 6.50 M | 6.98 | 5.7 | 16 | 154 | 118 | -2 | 7 | / | -407 | / | 0.02 | |
| DEV | Eco (Atlantic) Oil & Gas Ltd | ECO.L | | 207.5 M | 59.7 | 2.9 | 3 | -14 | 61 | 706 | 582 | / | -3.8 | / | 0 | |
| DEV | Falcon Oil & Gas Ltd | FOG.L | | 176.4 M | 15.9 | -5.1 | 1 | 0 | 20 | 56 | 194 | / | -4.9 | / | 0 | |
| DEV | Jersey Oil and Gas Plc | JOG.L |  | 31.6 M | 96.6 | 0.1 | -11 | -17 | 2 | -33 | -15 | / | -22 | / | 0 | |
| DEV | Orcadian Energy Plc | ORCA.L | | 12.7 M | 16 | 6.7 | 7 | 0 | -11 | 3 | 60 | / | -10 | / | 0.83 | |
| DEV | Pantheon Resources Plc | PANR.L | | 179.0 M | 12.3 | 7.3 | 10 | 13 | 64 | -48 | -70 | / | -0.91 | / | 0.1 | |
| DEV | Petro Matad Limited | MATD.L |  | 24.8 M | 1.35 | 3.8 | 4 | -6 | 19 | 25 | -27 | / | -44 | / | 0 | |
| DEV | Predator Oil & Gas Holdings Plc | PRD.L | | 22.8 M | 3.54 | -15.4 | -2 | 1 | 7 | 26 | 16 | / | -5.4 | / | 0 | |
| DEV | Prospex Energy PLC | PXEN.L | | 13.1 M | 3.02 | -5.6 | -8 | -6 | 2 | -18 | -42 | 1 | -0.14 | / | 0 | |
| DEV | Reabold Resources Plc | RBD.L | | 9.44 M | 92.6 | -1 | 3 | -12 | 12 | 95 | 101 | / | -70 | / | 0 | |
| DEV | Rockhopper Exploration plc | RKH.L | | 510.5 M | 80.7 | 1.3 | -2 | -3 | 15 | 2 | 47 | / | 23 | / | 0.06 | |
| DEV | Seascape Energy Asia plc | SEA.L | | 66.1 M | 94 | 3.3 | 9 | 18 | 15 | 36 | 176 | / | -91 | / | 0 | |
| DEV | Sunda Energy Plc | SNDA.L | | 8.86 M | 2.3 | -0.1 | 4 | -22 | -41 | 4 | -51 | / | -12 | / | 0 | |
| DEV | Tower Resources plc | TRP.L | | 9.27 M | 0.023 | -2.1 | -8 | -12 | -10 | -23 | -10 | / | -22 | / | 0 | |
| DEV | Upland Resources Limited | UPL.L | | 46.1 M | 2.67 | 0.8 | 0 | -8 | -21 | 12 | 205 | / | -9.9 | / | 0 | |
| DEV | Wildcat Petroleum Plc | WCAT.L | | 3.61 M | 0.12 | 9.1 | 85 | 60 | 85 | 50 | 41 | / | -13 | / | 0 | |
| INV | Westmount Energy Limited | WTE.L | | 5.47 M | 3.8 | 2.7 | -10 | 1 | -28 | 55 | 660 | / | -77 | 388 | 0 | |
