The directors have also obtained a lease of the Mortonhall shale, and they are negotiating a lease of part of the adjoining shale field owned by Sir George Clerk.
Clippens Oil Company Ltd AGM reported in Glasgow Herald, 14th July 1882
In the dispute which is going on between the men employed at the Straiton, Mortonhall, Pentland, and No.8 mines of the Clippens Oil Co., and the liquidators of the company, owing to a threatened reduction in wages by 10 percent, the latter hold that the mines cannot be carried on without the reduction, and that if the men do not agree to it the mines will be closed to-day.
Glasgow Herald, 20th April 1893
The Directors of the Clippens Oil Co. have decided to re-open their stone quarries at Straiton. This will give employment to many workers who are idle owing the closing of the oil works in connection with the action taken by the Edinburgh and District Water Trust.
Glasgow Herald, 9th April 1898
The directors regret to state that in November last a creep took place on the western side of their Pentland pit. The creep is now ceased, but for a time it seriously interfered with their increasing output of shale. In addition to the seams already known to existing in the company's lands a new seam of shale has been found, 4 feet and 10 inches thick, below the present main seam, and the directors are sinking a trial shaft to it.
Report by the directors of the Clippens Oil Company Ltd, reported in Glasgow Herald, 24th April 1886
About two months ago, after cutting through a small dyke in the main seam of shale, about 75 fathoms from the surface, we got a flow of water equal to about 200 gallons a minute. The quantity was not itself a matter of importance, but with out existing pumping arrangements, we were no prepared for the extra flow, and the result was that for a time the overflow found its way into the lower part of the pit and flooded our lowest level. No delay occurred in fitting up pumping arrangements, and we have now appliances at work quite capable of coping with it, and the water in the lower level of the mine is being steadily reduced. It is satisfactory to say that the flow has pined within the last few days from 200 to 120 gallons and is still decreasing. A t the same time, the directors deem it prudent to erect pumping power of sufficient capacity to cope with any water that may yet be got, so that there should be no interference with a steady out put of about 6000 tons weekly. There are at present opening up some new seams of shale beneath the Pentland main seam. It is premature yet to give an opinion on them, but as they exist in the company's own property at Straiton, they may still further add to the very ample fields of shale owned by the company.
Report by the Directors of the Clippens Oil Company Ltd, reported in Glasgow Herald, 11th May 1887