
眾所周知,油價的高低受多種因素的影響,不只是供需,還包括美元指數、市場預期等。本文從歷史角度、多種維度出發,剖析油價走向,以及當前油市出現的問題。
作者 | Allen Brooks
編譯 | 寧采臣 卡夫卡 王洋
前段時間,當全球油價下跌至五個月來最低點時,原油價格戰的警鐘開始鳴起。當時油價發生變化主要是由于貿易商、投機商和套期保值者越來越懷疑石油出口國(OPEC及非OPEC支持者)所做出減產180萬桶/天的決定。由于石油出口國通過削減產量、減少全球石油庫存從而使全球油價攀升的這一舉措缺乏說服力,原油價格下滑。
幾天前,當油價可能下跌至40美元/桶,或者甚至更低時,恐慌情緒促使OPEC生產國不得不作出繼續減產的協定。世界石油市場的主要參與者:OPEC、沙特阿拉伯和俄羅斯等國家釋放出信號,它們將盡其所能來推動油價走高。
這次石油價格戰非常重要,它需要世界三大石油生產國中的兩家聯合在一起來提高油價。在聯合之后油價反彈之前,人們擔心石油減產協議并不能使全球石油市場重新達到平衡。事實上,即使油價超過50美元/桶,卻仍然要比年初聲明過的每桶低2美元,這顯然不是OPEC、沙特阿拉伯、俄羅斯或其他非OPEC出口國家所希望的。

如表1所示,5月初油價是3月份以來最低的油價,市場擔心OPEC成員國是否會遵守減產協議。石油出口國希望看到的是2017年頭兩個月交易油價重新回到或者接近50美元/桶左右。
今年影響油價的不僅僅是對市場調整步伐的預期。在這一點上,IEA的五月月報得出結論:OPEC和11個非OPEC國家減產前的產量仍然能被市場吸收,庫存需要一段時間來反映供應量減少的情況。它進一步指出,為了達到OPEC近五年平均庫存水平目標值,石油市場正在加速調整,庫存量正在減少,2017下半年仍有許多工作要做。這一觀察結果與OPEC的5月份月度石油市場報告的觀點一致。如果他們希望全球油價上漲到60美元/桶,就需要對沙特阿拉伯和俄羅斯施加巨大壓力,OPEC和非OPEC國家達成一致,延長減產協議。
OPEC及其合作伙伴面臨的挑戰之一是克服影響油價的其他市場力量,包括積極的和消極的力量。例如,美元價值的變化影響商品價格,尤其是石油價格;油價面臨的壓力也來自投機者的未來交易油價。這些壓力既可以促進油價上漲,也可以抑制油價上漲。
傳統上來說,美元對其他貨幣匯率的波動影響著全球商品的交易價格。原油在全球范圍內是以美元進行交易的。當美元貶值時,原油的外匯價格就越低廉,這刺激了全球的石油需求。同樣,當美元升值時,國外買家發現石油更加昂貴,需求受限。這種模式在石油長期歷史上就已經存在。

如表2所示,自1973年以來,美元走勢疲軟,油價相應上漲,這持續了很長一段時間。但是,在20世紀80年代和90年代上半葉,美元貶值,油價卻小幅上漲。在20世紀70年代,油價在此期間并沒有增長很多的原因很大程度上是由于全球石油產量巨大增加,加上1973-1974年阿拉伯石油禁運和1979年伊朗革命導致石油供應減少。由此造成的全球經濟衰退和世界石油供應量增加,一并限制了油價上漲的幅度。
2002-2011年,美元走勢疲軟,油價大幅上漲,曾經一度高達100美元/桶多。這些年恰逢“大宗商品超級周期”,在中國和印度經濟快速增長的推動下,全球商品需求似乎出現了爆炸式增長,同時人們擔心行業能否將足夠的新用品投入市場以滿足未來的預期需求。
然而,現在美元和油價之間這種強烈的相關性似乎已經減弱了。

表3顯示了2017年初以來油價及美元的走勢。1月至2月期間,油價整體趨勢節節攀高,美元貨幣初始下跌,隨后上漲;至3月,油價及美元走勢均呈下降趨勢;這種新態勢一直持續至5月。這是否意味著無法再通過預測美元貶值與否判斷油價的走勢呢?從理論上講,這樣的預測仍將有效。但兩者相互關系的瓦解表明,其他因素對油價的影響更甚于美元。

投機者和石油交易商是影響今年油價的主要勢力,他們期待油價變化,無論上漲亦或下跌。在過去7年里,投機者們在油價峰值時,大量建倉,隨著油價下跌,他們隨即削減倉位。從表4和表中的紅色箭頭可以看出,原油期貨持倉量隨著峰值后原油價格下跌而下降,恰恰印證了這一點。無可厚非的是,這些石油交易商和投機者在油價下跌時拋售股票,在最大化利益的交易活動中打了一場漂亮的擦邊球。某種程度上,隨著投機者和石油交易商建倉,我們可能會忽略其對油價的影響。

2017年迄今為止,石油交易商和投機者的原油期貨建倉量巨大有目共睹,這反映了他們對更高油價趨勢的看好。反觀2014年末沙特阿拉伯棄守支持OPEC至今,我們可以看到,投機者們在2015年初預測油價回暖并建立了長線倉位。
油價確實出現了反彈,但無法維持其較高水平,隨著其穩步下跌,2016年2月油價走低態勢成為定局。在油價下跌期間,投機者們不斷建倉,因此,2016年2月至5月油價上漲時,投機者們盈利頗豐。從那時起至2016年11月,投機者們持倉的變化反映了油價的走勢。11月至12月,隨著油價上漲,投機者們持倉量增加;2017年初期,投機者們大舉增持期貨;但隨著投機者們開始削減倉位,油價上漲停止,價格在大幅下降之前也開始搖擺不定。

表6顯示了投機者的短線持倉情況,這在一定程度上反映了投機者和石油交易商態度的轉變。
維也納5月25日召開的會議上,沙特阿拉伯和俄羅斯共同宣布支持OPEC將減產協議延長九個月。OPEC和非OPEC出口商們付出了巨大努力,將徘徊于47美元/桶的油價推升至高于50美元/桶。他們一直在討論如何讓所有出口商同意將減產協議延長九個月并加大減產規模。通過對美國原油庫存連續六周的密切關注,IEA稱,盡管困難重重,2017年第一季度油市將重現再平衡。而美國原油產量將首次下滑的預測也緩解了原油定價情緒。
值得深思的是,盡管采取了所有措施來阻止油價下跌,并將其推升至50美元/桶以上,但這仍然未達到沙特阿拉伯、俄羅斯和OPEC的預期水平。對沙特阿拉伯而言,油價在2018年初回歸至60美元/桶對沙特阿美公司(Saudi Aramco)實現首次公開募股的成功至關重要。
當前的油價走勢是否表明一些行業人士未能關注的結構性問題,我們無從可知。但是以上圖表若能讓你對行業走勢有著新的看法和認知,便已足夠。一家之言,歡迎討論。
In the oil patch, the price drums are being banged. Everyone has their hand cupped to their ear trying to decipher the message. Higher prices! Higher prices! That’s what everyone is hearing. Those drums started beating that message rapidly more than a week ago when global oil prices fell to a five-month low. As oil prices started crashing, the price action was explained by traders, speculators and hedgers who were increasingly doubting the resolve of oil exporters, principally OPEC and its non-OPEC supporters, who had agreed to cut their output by a combined 1.8 million barrels a day. As this lack of conviction grew that exporters, by cutting their output, would be able to drive down global oil inventories thus allowing world oil prices to climb, crude oil prices fell.
Recently, when it appeared oil prices might fall to $40 a barrel or possibly even lower, the fear factor drove the OPEC producers most impacted by lower global oil prices to react. The key players in the world oil market – OPEC, Saudi Arabia and Russia began beating the drum to send the message that they would do what was necessary in order to drive oil prices higher.
The need for this drum beat became so important that it required two of the world’s three largest oil producers, whose economies are significantly dependent on oil prices, to appear together in an effort to talk up the oil price. Before the rebound in oil prices that followed the joint presentation, concern was that the oil production cut agreement was failing to rebalance the global oil market. In fact, even as oil prices crossed above the $50 a barrel mark, they still remained nearly $2 a barrel below where they started the year. That was certainly not what OPEC, Saudi Arabia, Russia or the other non-OPEC exporters were counting on when they agreed to limiting or reducing their oil output last November.
The low oil price in early May, as shown in Exhibit 1, was below the prior low established in March when market concerns focused on whether OPEC members were complying with the production cut agreement. What oil exporters wanted to see was a return to where oil prices traded during the first two months of 2017, closer to the mid-$50s a barrel.
What is impacting oil prices this year is more than just expectations about the pace of the market rebalancing. On that point, the May Monthly Oil Report (MOR) from the International Energy Agency (IEA) concluded, “It has taken some time for stocks to reflect lower supply when volumes produced before output cuts by OPEC and eleven non-OPEC countries took effect are still being absorbed by the market.” It further pointed out that while the oil market rebalancing is “accelerating,” and inventory volumes are being drawn down, in order to reach the five-year average inventory levels that OPEC is targeting, “much work remains to be done in the second half of 2017.” That observation, consistent with the view of OPEC in its May monthly oil market report, put great pressure on Saudi Arabia and Russia to lead the OPEC/non-OPEC combine in getting to an agreement to extend the production cuts if they wished global oil prices to rise to the $60 a barrel target.
Part of the challenge for OPEC and its partners is overcoming the other market forces that are influencing oil prices, both positively and negatively. For example, what is happening with the value of the U.S. dollar has an impact on the price of commodities, especially oil. There is also the pressure on oil prices that comes from the actions of speculators who trade options on future oil prices. Those pressures can either help boost oil prices or act to depress the efforts to raise them.
Traditionally, movements in the value of the U.S. dollar against other currencies impact the prices of commodities that are traded globally. When the value of the dollar falls, it makes crude oil, which is traded worldwide in U.S. dollars, cheaper in foreign currencies and stimulates global oil demand. Likewise, when the dollar’s value increases, foreign buyers find oil more expensive, limiting demand. That pattern has been observed over long periods of oil history.
As shown in Exhibit 2, since 1973, it is easy to see extended periods when the U.S. dollar was weak and correspondingly, oil prices rose. In particular, note what happened to the value of the dollar during the 1980s and first half of the 1990s. As the dollar’s value fell during that period, oil prices rose slightly. A reason why oil prices didn’t increase more during that time is largely explained by the huge expansion of oil output globally in response to the explosion in oil prices during the 1970s following the Arab oil embargo of 1973/74 and the loss of oil supplies due to the Iranian revolution in 1979. The resulting global economic recession and increase in world oil supplies combined to limit the magnitude of improvement in oil prices.
If we look at the weakness in the dollar value during 2002-2011, we see that oil prices exploded, rising well above $100 a barrel for a significant portion of that time. Those years coincided with the commodity super-cycle when global demand for all commodities seemed to explode, driven by the rapid economic growth of China and India, along with concerns about the ability of the industries to bring sufficient new supplies to market to meet projected future demand. Now, however, it seems that this strong correlation between changes in the value of the U.S. dollar and oil prices has weakened.
Exhibit 3 shows the oil price and the value of the U.S. dollar so far this year. During the first two months of 2017, oil prices rose while the dollar’s value fell initially, but then rose. During March, the oil price fell as did the value of the dollar, the opposite of what would have been expected. This new relationship has continued through April and May. Does it mean this relationship is no longer working? Theoretically, it should still work, but the breakdown of the correlation suggests other factors are having a more powerful impact on oil prices than just changes in the value of the U.S. dollar.
One of the more powerful forces impacting crude oil prices this year has been speculators and oil traders. These are people who are trading futures contracts in expectation of changes in future oil prices, either up or down. One of the patterns that has proven quite accurate over the past seven years has been the tendency for speculators to build peak oil holdings just as oil prices reach a peak before declining. Examining Exhibit 4 (prior page) and the chart’s red arrows showing when oil prices fell compared to the level of oil futures holdings demonstrates this correlation. One would suggest that these traders and speculators have done a very good job in maximizing their trading activity – selling their holdings just as oil prices fell. What may be missed to some degree is what influence the traders and speculators had on oil prices, as they built their positions.
So far in 2017, these traders and speculators have built the largest holdings ever seen. That phenomenon reflects both the high level of optimism traders and speculators had/have for higher oil prices. So far, that bet has not been as successful as the amount of capital they have wagered would imply. When we look at what has happened with speculators’ long oil futures holdings and oil prices since the Saudi Arabia decision to abandon supporting OPEC oil prices in late 2014, we see how, early in 2015, speculators anticipated an oil price recovery and built their long futures holdings. Oil prices did rebound, but couldn’t sustain the higher level and began falling almost steadily until the February 2016 oil price low was established. During that decline, speculators slowly built their long holdings, thus benefitting from the February to May 2016 oil price rise. From then until November 2016, the changes in speculator long holdings mirrored the pattern of oil prices. Starting in November and continuing through December, holdings grew as oil prices rose. Early in 2017, speculators began aggressively adding to their futures holdings, but the oil price increase stopped and then prices went sideways before falling, which came immediately after the speculators started unwinding their positions.
speculators’ short holdings as shown in Exhibit 6. It was partially in response to this shift in sentiment among speculators and traders that motivated Saudi Arabia and Russia to jointly announce their pledge to work for a nine-month extension of the current oil production cut agreement when OPEC met May 25th. A decision that was the outcome of the meeting.
It has taken an incredible amount of effort by OPEC and non-OPEC exporters to push oil prices from the $47 a barrel range back above $50. These exporters have talked about working to get all the exporters to agree to the nine-month extension and possibly to increase the size of the oil production cut from what they have been undertaking. The IEA’s comments about the rebalancing of the oil market in the first quarter of 2017, despite the need for additional work, combined with the sixth weekly draw in closely-watched U.S. crude oil inventories and the first decline in estimated U.S. oil production also helped improve oil pricing sentiment. What is important to contemplate is that it took all of these efforts to stop the erosion in oil prices and boost them back above $50, still quite a ways below where Saudi Arabia, Russia and OPEC want them to be. For Saudi Arabia, getting oil prices to $60 a barrel by early 2018 is important for the success of their planned IPO of Saudi Aramco. Does the current oil price action suggest there are structural issues at work within the global oil market that people are not either paying attention to, or do not comprehend? Time will tell.
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