| 2D Seismic | Seismic recorded along a single traverse and processed to form a two dimensional profile of the subsurface |
| 3D Seismic | Seismic recorded along many closely spaced traverses and processed to form a three dimensional view of the subsurface |
| A$ or $ | Australian dollars |
| A-IFRS | Australian International Financial Reporting Standards |
| AGAAP | Australian Generally Accepted Accounting Principles |
| AGM | Annual General Meeeting |
| ASX | Australian Securities Exchange |
| bbls | Barrel of oil. 42 US gallons, 35 imperial gallons, 5.615 cubic feet; 159 litres |
| Bcf | Billion(1,000,000,000) cubic feet |
| Board | The board of directors |
| Boe | Barrels of oil equivalent |
| Bopd | Barrels per day (oil and condensate) |
| CEO | Chief Executive Officer |
| Condensate | Hydrocarbons which are liquid at surface temperature and pressure but are gaseous subsurface. |
| Constitution | The constitution of the company |
| Contingent Resources (2C) | Those quantities of petroleum which are estimated, on a given date, to be potentially recoverable from known accumulations but which are not currently considered to be commercially recoverable |
| CS-1 | Compressor station 1 connecting to the Dampier to Bunbury Natural Gas Pipeline |
| DBNGP | Dampier to Bunbury Natural Gas Pipeline |
| Director | A director of the company |
| EBITDA | before interest, tax, depreciation and amortisation |
| EPS | Earnings per share |
| Financial Year | The 12 months ending December 31 |
| FPSO | Floating Production, Storage and Offtake Vessel |
| Gas | Natural gas |
| Group | Tap and its subsidiaries |
| HJV | Harriet Joint Venture comprising Apache Northwest Pty Ltd. Kufpec Australia Pty Ltd and Tap (Harriet) Pty Ltd |
| Hydrocarbons | Oil, condensate and natural gas |
| JV | Joint venture |
| Km | kilometres |
| km2 or sqkm | Square kilometres |
| LNG | Liquid natural gas |
| M | Metres |
| Mmbbls | Millions of barrels of oil |
| mmboe or MMboe | Millions of barrels of oil equivalent |
| MMscf/d | Million standard cubic feet of gas per day |
| mmstb | Million stock tank barrels |
| NGOs | Non-government organisations |
| NPAT | Net profit after tax |
| Operator | The party appointed as operator under the JV agreement or similar agreement in relation to the relevant JV |
| PJ | Petajoule; 1,000 TJ |
| Prospect | A geological feature in the subsurface which is a potential trap for petroleum and is sufficiently defined for drilling |
| Proved plus Probable (2P) | The sum of Proved Reserves plus Probable Reserves (as those terms are defined in the SPE/WPC/AAPG/SPEE Petroleum Resource Management System) |
| Reserves | Those quantities of hydrocarbons which are anticipated to be commercially recovered from known accumulations from a given date forward |
| Tap | The Company Tap Oil Limited (ABN 89 068 572 341) |
| TJ | Terajolues (1012 joules); 1000 Gigajoules |
| TJ/d | Terajoules per day |
| Tcf | Trillion (1,000,000,000,000) cubic feet |
| Woollybutt JV | The Woollybutt Joint Venture comprising Eni Australia Limited, Mobil Australia Recources Co Pty Ltd and Tap West Pty Ltd |