All these maps are very important for the understanding of the oil and natural gas wars of the Middle East, but also for the internal conflict of Shia Iraq. Keep in mind that the war in Syria is very different from the war in Iraq. The war in Iraq happened because the Americans wanted to overturn Saddam Hussein, one of their bitter rivals, who had supported many terrorist attacks against them, in order to bring to power the Shia majority of Iraq, which was oppressed by Saddam Hussein. The Shias of Iraq saw the Americans as liberators. By overturning Saddam the Americans also strengthened the Kurds of Iraq, who are another American ally.
On the other hand, the war in Syria had nothing to do with the Americans, but with the wish of the Turks and the Arabs to construct the Arab-Turkish natural gas pipelines (Qatar-Turkey), through the Sunni parts of Syria, and in order to prevent Iran from reaching the Mediterranean Sea through Iraq and Syria. I say that because people forget that the Americans did not intervene in Syria. The rich in oil Iraq is very important for the Americans and the Chinese, while the poor in oil and gas Syria is not very important for them. But Syria is very important for the Arabs, the Iranians, the Turks and the Russians, because she can be used to export Iranian oil and gas to the Mediterranean Sea, or to export Arab oil and gas to Turkey and Europe.
Map Sunni VS Shia Pipelines
I have uploaded many posts about the Sunni-Shia pipeline war, and I do not want to further discuss the issue. Instead I want to write about the internal rivalry of Shia Iraq, and about how geography shapes this rivalry. As you can read at the following Anadolu article, many American analysts expect a conflict among the Shia Muslims of Iraq. Note that Anadolu is one of the main state-owned news agencies of Turkey. See Anadolu “US expert warns of conflict among Shia groups in Iraq”, April 2016.
As you can read at the Anadolu article, a very important Shia (Shiite) cleric of Iraq i.e. Muqtada al Sadr, is no longer supporting the Shia leadership of Iraq, and he wants Iraq to be governed by technocrats instead. Obviously technocrats will pay more attention to the economic fundamentals and not to religious factors i.e. who is a Sunni and who is a Shia Muslim. Al-Sadr comes from a very big Shia family of Iraq, and some members of his family were even killed by the Sunni regime of Saddam Hussein. You can read many articles about the rivalry and the internal conflict of Shia Iraq. See for example Al Monitor “The collapse of Iraq's Shiite alliance”, April 2016.
In the past, Sadr had been connected to Iran, but now he wants better relations with the Sunni Arabs of Iraq, with the Kurds of Iraq, and also with Turkey. See Al Monitor “Sadr Allies With Sunnis to Challenge Maliki”, January 2013.
Given that Sadr played a major role in the Sunni-Shia war of Iraq, it might sounds strange to hear him calling for better relations with the Sunnis. Moreover, many of his supporters want Iran out of Iraq. Remember that Iran was traditionally supporting the Iraqi Shias and the Iraqi Kurds against Saddam Hussein, in order to destabilize Iraq, because Iraq and Saddam Hussein was on of Iran's main rivals.
What is important, and what you should remember, is not the name