In my seemingly futile and interminable quest to reconcile the differences between the data provided by the JODI Oil organisation and BP as revealed in part by the annual BP Statistical Review of World Energy, I have moved on to looking at production (primary supply), found a problem as regards Africa, and had some confirmation that a major adjustment in how the data is collected happened in 2009.
First – the problem with Africa. The basket “Other Africa” for oil production is far less in the BP data than it is in the JODI Oil data – shown by negative figures in the comparison. For 2015, this is approximately 65% in scale (-3800 KBD) of the summed positive difference between the BP and JODI figures for the named countries (5884 KBD). This reminds me that there was a problem with the refined oil product consumption figures for “Other Africa” as well. Without a detailed breakdown of individual country accounts from BP it is almost impossible to know where these differences arise, it seems to me, or begin to understand why these differences are so large. Maybe I should just ask BP for a full country breakdown – if they’d ever deign to communicate this kind of information with me. Standing by my email Inbox right now… Could be here some time…
It is fairly clear from the comparison for North America that a major shift in understanding by either BP or JODI Oil took place in 2009, as the oil production data converge significantly for that year onwards. There was similar evidence of this in the refined oil products consumption data.
As with the consumption data, the production data for the Middle East region is strongly divergent between BP and JODI. I did read something potentially useful in the JODI Oil Manual, which I would recommend everyone interested in energy data to read. In the notes for Crude Oil, I read : “One critical issue is whether the volumes of NGL, lease or field condensates and oils extracted from bituminous minerals are included. All organisations exclude NGL from crude oil. If condensates are able to be excluded, it should be noted to the JODI organisation(s) of which the country/economy is a member. Most OPEC member countries exclude condensates.” Now, I guess, the struggle will be to find some data on condensates. Of which there are a variety of sources and nomenclature, be they light liquid hydrocarbons from oil and gas production or oil and gas refining/processing/cryoprocessing. There may be faultlines of comprehension and categorisation, such as about who considers NGPL or Natural Gas Plant Liquids from Natural Gas processing plants to be in the category of NGLs – Natural Gas Liquids, and therefore effectively in the bucket of Crude Oil.
I’m no closer to any answers on why BP oil data doesn’t align with JODI Oil data. And it looks like I’ve just opened a whole can of condensate wormy questions.