The Coppa Company's works, which lie close to the Leeswood Colliery, from whence, believe, they draw a portion of their great supply, are neighbouring to the station, and cover seven acres of ground. They are like gas works on a small scale, only the tanks are underground. They have 198 retorts, each of 15 cwt. capacity, and 16 stills, so that they possess a capacity of producing 1,500 gallons, equal to 120 tons of oil weekly. The shares of this company are chiefly held, I think, in Birmingham, and they have been doing a comfortable 10 per cent, business for the last three years, through all the difficulties attendant on the first experiments
Western Daily Press, 17th November 1865, quoting Ryland's Iron Trade Gazette
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COPPA OIL COMPANY, LIMITED. This company, which is of local origin, and whose shares are mainly held in Birmingham, held its annual meeting on Wednesday, at the works, near Mold, Mr. Thomas Short, the chairman of the board, presided. A dividend at the rate of 10 per cent, was declared. The company has recently been extended, and the three partners of a neighbouring colliery, producing cannel coal, have been admitted, so as to place the company on a wider basis, both with respect to capital and a supply of coals. The works are very important, and are said to be admirably arranged
Birmingham Daily Post, 5th March 1866
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Presentation. — On the 9th inst., the friends and a number of workmen from the Coppa Oil Works, Padeswood, near Mold, met at Mr Williams's Queen's Arms Inn, Pontblyddyn, for the purpose of presenting to Mr Robert Hughes, late foreman of the crude oil department, at those works, a very nice piece of workmanship, viz., a gold albert chain and locket, on which was the following inscription: — "Presented to Robert Hughes by the workmen of the Coppa Oil Works, Padeswood, near Mold, April 9th, 1866." Mr Mason took the chair, and Mr Evans the vice-chair. Mr Mason, in a very able speech, alluded to the loss his companions and workmen, who had been employed under him, would feel by his leaving them. Mr Evans gave a very good speech in favour of the subscribers. Mr E. C. Griffiths presented the testimonial to him on behalf of the subscribers. The usual toasts and songs were given, and the company separated at an early hour, after passing a very pleasant evening. — Mr Hughes is leaving this neighbourhood to fill a similar situation in Labuan, off the coast of Borneo, in the eastern seas.
Wrexham Advertiser, 14th April 1866
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On Tuesday morning a man named George Jones, who was employed at the Coppa Oil Works, Padeswood, near Mold, met with so serious an accident that his death ensued. Some petroleum that was in course of manufacture ignited, Jones being close to where the explosion took place. Most of his clothes were burnt to tinder, and he was dreadfully burnt from his face down, to his feet.
Wrexham Advertiser, 21st April 1866
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TO MINERAL OIL REFINERS – Manager Wanted. The Coppa Oil Company (Limited) are prepared to receive applications for the Situation of Manager of their works. He must be practically acquainted with Refining of Coal Oil in all its branches. Address, with full particulars, The Secretary of the Coppa Oil Co. (Limited), Mold, Flintshire.
Scotsman, 8th June 1866